List of systemic diseases with ocular manifestations
Encyclopedia
This is a list of systemic diseases with ocular manifestations.

An ocular manifestation of a systemic disease
Systemic disease
Life-threatening disease redirects here.A systemic disease is one that affects a number of organs and tissues, or affects the body as a whole. Although most medical conditions will eventually involve multiple organs in advanced stage Life-threatening disease redirects here.A systemic disease is one...

 is an eye condition that directly or indirectly results from a disease
Disease
A disease is an abnormal condition affecting the body of an organism. It is often construed to be a medical condition associated with specific symptoms and signs. It may be caused by external factors, such as infectious disease, or it may be caused by internal dysfunctions, such as autoimmune...

 process another part of the body. There are many diseases known to cause ocular or visual changes. Diabetes, for example, is the leading cause of new cases of blindness
Blindness
Blindness is the condition of lacking visual perception due to physiological or neurological factors.Various scales have been developed to describe the extent of vision loss and define blindness...

 in those aged 20–74, with ocular manifestations such as diabetic retinopathy
Diabetic retinopathy
Diabetic retinopathy is retinopathy caused by complications of diabetes mellitus, which can eventually lead to blindness....

 and macular edema
Macular edema
Macular edema occurs when fluid and protein deposits collect on or under the macula of the eye and causes it to thicken and swell. The swelling may distort a person's central vision, as the macula is near the center of the retina at the back of the eyeball...

 affecting up to 80% of those who have had the disease for 15 years or more. Other diseases such as acquired immunodeficiency syndrome
AIDS
Acquired immune deficiency syndrome or acquired immunodeficiency syndrome is a disease of the human immune system caused by the human immunodeficiency virus...

 (AIDS) and hypertension
Hypertension
Hypertension or high blood pressure is a cardiac chronic medical condition in which the systemic arterial blood pressure is elevated. What that means is that the heart is having to work harder than it should to pump the blood around the body. Blood pressure involves two measurements, systolic and...

 are commonly found to have associated ocular symptoms.

Systemic allergic diseases

  • Atopic dermatitis
    Atopic dermatitis
    Atopic dermatitis is an inflammatory, chronically relapsing, non-contagious and pruritic skin disorder...

  • Atopic eczema
  • Hay fever
    Hay Fever
    Hay Fever is a comic play written by Noël Coward in 1924 and first produced in 1925 with Marie Tempest as the first Judith Bliss. Laura Hope Crews played the role in New York...

  • Asthma
    Asthma
    Asthma is the common chronic inflammatory disease of the airways characterized by variable and recurring symptoms, reversible airflow obstruction, and bronchospasm. Symptoms include wheezing, coughing, chest tightness, and shortness of breath...

  • Urticaria
    Urticaria
    Urticaria is a kind of skin rash notable for pale red, raised, itchy bumps. Hives is frequently caused by allergic reactions; however, there are many non-allergic causes...

  • Vernal conjunctivitis

Skin and mucous membrane diseases

  • Acne rosacea
  • Albinism
    Albinism
    Albinism is a congenital disorder characterized by the complete or partial absence of pigment in the skin, hair and eyes due to absence or defect of an enzyme involved in the production of melanin...

  • Atopic dermatitis
    Atopic dermatitis
    Atopic dermatitis is an inflammatory, chronically relapsing, non-contagious and pruritic skin disorder...

  • Behçet's disease
    Behçet's disease
    Behçet's disease is a rare immune-mediated systemic vasculitis that often presents with mucous membrane ulceration and ocular involvements...

  • Cicatricial pemphigoid
    Pemphigoid
    Pemphigoid is a group of uncommon and rare autoimmune blistering skin diseases. As its name indicates, pemphigoid is similar to pemphigus, but, unlike pemphigus, pemphigoid does not feature acantholysis....

  • Ehlers-Danlos syndrome
    Ehlers-Danlos syndrome
    Ehlers–Danlos syndrome is a group of inherited connective tissue disorders, caused by a defect in the synthesis of collagen . The collagen in connective tissue helps tissues to resist deformation...

  • Epidermolysis bullosa
    Epidermolysis bullosa
    Epidermolysis bullosa is an inherited connective tissue disease causing blisters in the skin and mucosal membranes, with an incidence of 1/50,000. Its severity ranges from mild to lethal. It is caused by a mutation in the keratin or collagen gene....

  • Erythema multiforme
    Erythema multiforme
    Erythema multiforme is a skin condition of unknown cause, possibly mediated by deposition of immune complex in the superficial microvasculature of the skin and oral mucous membrane that usually follows an infection or drug exposure...

  • Goltz-Gorlin syndrome
  • Ichthyosis
    Ichthyosis
    Ichthyosis is a heterogeneous family of at least 28, generalized, mostly genetic skin disorders. All types of ichthyosis have dry, thickened, scaly or flaky skin...

  • Incontinentia pigmenti
    Incontinentia pigmenti
    Incontinentia Pigmenti is a genetic disorder that affects the skin, hair, teeth, nails, and central nervous system...

  • Nevus of Ota
    Nevus of Ota
    Nevus of Ota is a blue hyperpigmentation that occurs on the face. It was first reported by Dr. M. T. Ota of Japan in 1939.Nevus of Ota is caused by the entrapment of melanocytes in the upper third of the dermis...

  • Pemphigus
    Pemphigus
    Pemphigus is a rare group of blistering autoimmune diseases that affect the skin and mucous membranes.In pemphigus, autoantibodies form against desmoglein. Desmoglein forms the "glue" that attaches adjacent epidermal cells via attachment points called desmosomes...

  • Pseudoxanthoma elasticum
    Pseudoxanthoma elasticum
    Pseudoxanthoma elasticum , also known as Grönblad–Strandberg syndrome, is a genetic disease that causes fragmentation and mineralization of elastic fibers in some tissues. The most common problems arise in the skin and eyes, and later in blood vessels in the form of premature atherosclerosis...

  • Psoriasis
    Psoriasis
    Psoriasis is an autoimmune disease that appears on the skin. It occurs when the immune system mistakes the skin cells as a pathogen, and sends out faulty signals that speed up the growth cycle of skin cells. Psoriasis is not contagious. However, psoriasis has been linked to an increased risk of...

  • Stevens–Johnson syndrome (Erythema multiforme major
    Erythema multiforme major
    Erythema multiforme major is a term that may be used to refer to two conditions that constitute a spectrum of the same disease process:* Stevens–Johnson syndrome...

    )
  • Vogt-Koyanagi-Harada syndrome
    Vogt-Koyanagi-Harada syndrome
    Vogt–Koyanagi–Harada syndrome is a condition seen in humans and dogs involving various melanocyte-containing organs, characterized by uveitis , poliosis , vitiligo , and meningitis, although dogs with this syndrome rarely develop meningitis...

  • Xeroderma pigmentosum
    Xeroderma pigmentosum
    Xeroderma pigmentosum, or XP, is an autosomal recessive genetic disorder of DNA repair in which the ability to repair damage caused by ultraviolet light is deficient. In extreme cases, all exposure to sunlight must be forbidden, no matter how small. Multiple basal cell carcinomas and other skin...


Phacomatoses

  • Angiomatosis retinae (Von Hippel-Lindau disease
    Von Hippel-Lindau disease
    Von Hippel–Lindau is a rare, autosomal dominant genetic condition in which hemangioblastomas are found in the cerebellum, spinal cord, kidney and retina. These are associated with several pathologies including renal angioma, renal cell carcinoma and pheochromocytoma...

    ) (Retinocerebellar Capillary Hemangiomatosis)
  • Ataxia telangiectasia
    Ataxia telangiectasia
    Ataxia telangiectasia is a rare, neurodegenerative, inherited disease that affects many parts of the body and causes severe disability. Ataxia refers to poor coordination and telangiectasia to small dilated blood vessels, both of which are hallmarks of the disease...

     (Louis-Bar syndrome)
  • Encephalotrigeminal angiomatosis (Sturge-Weber syndrome
    Sturge-Weber syndrome
    Sturge–Weber syndrome, sometimes referred to as encephalotrigeminal angiomatosis, is a rare congenital neurological and skin disorder. It is one of the phakomatoses and is often associated with port-wine stains of the face, glaucoma, seizures, mental retardation, and ipsilateral leptomeningeal...

    ) (Encephalofacial Cavernous Hemangiomatosis)
  • Neurofibromatosis
    Neurofibromatosis
    Neurofibromatosis is a genetically-inherited disorder in which the nerve tissue grows tumors that may be benign or may cause serious damage by compressing nerves and other tissues...

     (von Recklinghausen's disease)
  • Tuberous sclerosis
    Tuberous sclerosis
    Tuberous sclerosis or tuberous sclerosis complex is a rare multi-system genetic disease that causes non-malignant tumors to grow in the brain and on other vital organs such as the kidneys, heart, eyes, lungs, and skin. A combination of symptoms may include seizures, developmental delay, behavioral...

     (Bourneville's syndrome)
  • Wyburn-Mason syndrome (Racemose Hemangiomatosis)

Collagen diseases

  • Ankylosing spondylitis
    Ankylosing spondylitis
    Ankylosing spondylitis , previously known as Bekhterev's disease, Bekhterev syndrome, and Marie-Strümpell disease is a chronic inflammatory disease of the axial skeleton with variable involvement of peripheral joints and nonarticular structures...

  • Dermatomyositis
    Dermatomyositis
    Dermatomyositis is a connective-tissue disease related to polymyositis and Bramaticosis that is characterized by inflammation of the muscles and the skin.- Causes :...

  • Periarteritis nodosa
  • Reiter's syndrome
  • Rheumatoid arthritis
    Rheumatoid arthritis
    Rheumatoid arthritis is a chronic, systemic inflammatory disorder that may affect many tissues and organs, but principally attacks synovial joints. The process produces an inflammatory response of the synovium secondary to hyperplasia of synovial cells, excess synovial fluid, and the development...

  • Sarcoidosis
    Sarcoidosis
    Sarcoidosis , also called sarcoid, Besnier-Boeck disease or Besnier-Boeck-Schaumann disease, is a disease in which abnormal collections of chronic inflammatory cells form as nodules in multiple organs. The cause of sarcoidosis is unknown...

  • Scleroderma
    Scleroderma
    Systemic sclerosis or systemic scleroderma is a systemic autoimmune disease or systemic connective tissue disease that is a subtype of scleroderma.-Skin symptoms:...

  • Systemic lupus erythematosus
    Systemic lupus erythematosus
    Systemic lupus erythematosus , often abbreviated to SLE or lupus, is a systemic autoimmune disease that can affect any part of the body. As occurs in other autoimmune diseases, the immune system attacks the body's cells and tissue, resulting in inflammation and tissue damage...

  • Temporal arteritis
    Temporal arteritis
    Giant-cell arteritis or Horton disease is an inflammatory disease of blood vessels most commonly involving large and medium arteries of the head...

  • Relapsing polychondritis
  • Wegener's granulomatosis
    Wegener's granulomatosis
    Wegener's granulomatosis , more recently granulomatosis with polyangiitis , is an incurable form of vasculitis that affects the nose, lungs, kidneys and other organs. Due to its end-organ damage, it is life-threatening and requires long-term immunosuppression...

     50-60% have ophthalmologic manifestations, which can be a presenting feature in a minority of patients. Orbital disease is the most common manifestation, and may result in proptosis, restrictive ophthalmopathy, chronic orbital pain, and in chronic cases, orbital retraction syndrome and intractable socket pain. Wegener's may also cause injury to the optic nerve
    Optic neuritis
    Optic neuritis is the inflammation of the optic nerve that may cause a complete or partial loss of vision.-Causes:The optic nerve comprises axons that emerge from the retina of the eye and carry visual information to the primary visual nuclei, most of which is relayed to the occipital cortex of the...

    , ophthalmoplegia, conjunctivitis
    Conjunctivitis
    Conjunctivitis refers to inflammation of the conjunctiva...

    , keratitis
    Keratitis
    Keratitis is a condition in which the eye's cornea, the front part of the eye, becomes inflamed. The condition is often marked by moderate to intense pain and usually involves impaired eyesight.-Types:...

    , scleritis
    Scleritis
    Scleritis is a serious inflammatory disease that affects the white outer coating of the eye, known as the sclera. The disease is often contracted through association with other diseases of the body, such as Wegener's granulomatosis or rheumatoid arthritis; it can also be attained through disorders...

    , episcleritis, dacrocystitis, nasolacrimnal duct obstruction, dacroadenitis, uveitis
    Uveitis
    Uveitis specifically refers to inflammation of the middle layer of the eye, termed the "uvea" but in common usage may refer to any inflammatory process involving the interior of the eye....

    , and retinal vasculitis.

Systemic viral infections

  • Varicella (chickenpox
    Chickenpox
    Chickenpox or chicken pox is a highly contagious illness caused by primary infection with varicella zoster virus . It usually starts with vesicular skin rash mainly on the body and head rather than at the periphery and becomes itchy, raw pockmarks, which mostly heal without scarring...

    )
  • Rubeola (measles
    Measles
    Measles, also known as rubeola or morbilli, is an infection of the respiratory system caused by a virus, specifically a paramyxovirus of the genus Morbillivirus. Morbilliviruses, like other paramyxoviruses, are enveloped, single-stranded, negative-sense RNA viruses...

    )
  • Rubella
    Rubella
    Rubella, commonly known as German measles, is a disease caused by the rubella virus. The name "rubella" is derived from the Latin, meaning little red. Rubella is also known as German measles because the disease was first described by German physicians in the mid-eighteenth century. This disease is...

     (German measles)
  • Variola (smallpox
    Smallpox
    Smallpox was an infectious disease unique to humans, caused by either of two virus variants, Variola major and Variola minor. The disease is also known by the Latin names Variola or Variola vera, which is a derivative of the Latin varius, meaning "spotted", or varus, meaning "pimple"...

    )
  • Vaccinia
    Vaccinia
    Vaccinia virus is a large, complex, enveloped virus belonging to the poxvirus family. It has a linear, double-stranded DNA genome approximately 190 kbp in length, and which encodes for approximately 250 genes. The dimensions of the virion are roughly 360 × 270 × 250 nm, with a mass of...

  • Herpes simplex
    Herpes simplex
    Herpes simplex is a viral disease caused by both Herpes simplex virus type 1 and type 2 . Infection with the herpes virus is categorized into one of several distinct disorders based on the site of infection. Oral herpes, the visible symptoms of which are colloquially called cold sores or fever...

  • Herpes zoster
    Herpes zoster
    Herpes zoster , commonly known as shingles and also known as zona, is a viral disease characterized by a painful skin rash with blisters in a limited area on one side of the body, often in a stripe...

  • Mumps
    Mumps
    Mumps is a viral disease of the human species, caused by the mumps virus. Before the development of vaccination and the introduction of a vaccine, it was a common childhood disease worldwide...

  • Infectious mononucleosis
    Infectious mononucleosis
    Infectious mononucleosis is an infectious, widespread viral...

  • Influenza
    Influenza
    Influenza, commonly referred to as the flu, is an infectious disease caused by RNA viruses of the family Orthomyxoviridae , that affects birds and mammals...

  • Cytomegalic inclusion disease
  • Pharyngoconjunctival fever (adenovirus 3)
  • Epidemic keratoconjunctivitis (adenovirus 8)
  • Human immunodeficiency virus (Acquired immunodeficiency syndrome
    AIDS
    Acquired immune deficiency syndrome or acquired immunodeficiency syndrome is a disease of the human immune system caused by the human immunodeficiency virus...

    )

Systemic bacterial infections

  • Gonorrhea
    Gonorrhea
    Gonorrhea is a common sexually transmitted infection caused by the bacterium Neisseria gonorrhoeae. The usual symptoms in men are burning with urination and penile discharge. Women, on the other hand, are asymptomatic half the time or have vaginal discharge and pelvic pain...

     (ophthalmia neonatorum
    Ophthalmia neonatorum
    Neonatal conjunctivitis, also known as ophthalmia neonatorum, is a form of bacterial conjunctivitis contracted by newborns during delivery. The baby's eyes are contaminated during passage through the birth canal from a mother infected with either Neisseria gonorrhoeae or Chlamydia trachomatis....

    )
  • Brucellosis
    Brucellosis
    Brucellosis, also called Bang's disease, Crimean fever, Gibraltar fever, Malta fever, Maltese fever, Mediterranean fever, rock fever, or undulant fever, is a highly contagious zoonosis caused by ingestion of unsterilized milk or meat from infected animals or close contact with their secretions...

  • Diphtheria
    Diphtheria
    Diphtheria is an upper respiratory tract illness caused by Corynebacterium diphtheriae, a facultative anaerobic, Gram-positive bacterium. It is characterized by sore throat, low fever, and an adherent membrane on the tonsils, pharynx, and/or nasal cavity...

  • Lyme disease
    Lyme disease
    Lyme disease, or Lyme borreliosis, is an emerging infectious disease caused by at least three species of bacteria belonging to the genus Borrelia. Borrelia burgdorferi sensu stricto is the main cause of Lyme disease in the United States, whereas Borrelia afzelii and Borrelia garinii cause most...

  • Septicemia bacterial metastatic endophthalmitis
  • Tularemia
    Tularemia
    Tularemia is a serious infectious disease caused by the bacterium Francisella tularensis. A Gram-negative, nonmotile coccobacillus, the bacterium has several subspecies with varying degrees of virulence. The most important of those is F...

  • Leprosy
    Leprosy
    Leprosy or Hansen's disease is a chronic disease caused by the bacteria Mycobacterium leprae and Mycobacterium lepromatosis. Named after physician Gerhard Armauer Hansen, leprosy is primarily a granulomatous disease of the peripheral nerves and mucosa of the upper respiratory tract; skin lesions...

     (Hansen's disease)
  • Tuberculosis
    Tuberculosis
    Tuberculosis, MTB, or TB is a common, and in many cases lethal, infectious disease caused by various strains of mycobacteria, usually Mycobacterium tuberculosis. Tuberculosis usually attacks the lungs but can also affect other parts of the body...

  • Syphilis
    Syphilis
    Syphilis is a sexually transmitted infection caused by the spirochete bacterium Treponema pallidum subspecies pallidum. The primary route of transmission is through sexual contact; however, it may also be transmitted from mother to fetus during pregnancy or at birth, resulting in congenital syphilis...


Systemic protozoal infections

  • Lymphogranuloma venereum
    Lymphogranuloma venereum
    Lymphogranuloma venereum is a sexually transmitted disease caused by the invasive serovars L1, L2, L2a or L3 of Chlamydia trachomatis....

     (chlamydial)
  • Inclusion conjunctivitis (chlamydial)
  • Malaria
    Malaria
    Malaria is a mosquito-borne infectious disease of humans and other animals caused by eukaryotic protists of the genus Plasmodium. The disease results from the multiplication of Plasmodium parasites within red blood cells, causing symptoms that typically include fever and headache, in severe cases...

  • Toxoplasmosis
    Toxoplasmosis
    Toxoplasmosis is a parasitic disease caused by the protozoan Toxoplasma gondii. The parasite infects most genera of warm-blooded animals, including humans, but the primary host is the felid family. Animals are infected by eating infected meat, by ingestion of feces of a cat that has itself...


Systemic fungal infections

  • Candida albicans
    Candida albicans
    Candida albicans is a diploid fungus that grows both as yeast and filamentous cells and a causal agent of opportunistic oral and genital infections in humans. Systemic fungal infections including those by C...

  • Histoplasmosis
    Histoplasmosis
    Histoplasmosis is a disease caused by the fungus Histoplasma capsulatum. Symptoms of this infection vary greatly, but the disease primarily affects the lungs...

  • Coccidioidomycosis
    Coccidioidomycosis
    Coccidioidomycosis is a fungal disease caused by Coccidioides immitis or C. posadasii. It is endemic in certain parts of Arizona, California, Nevada, New Mexico, Texas, Utah and northwestern Mexico.C...

  • Cryptococcus
    Cryptococcus
    Cryptococcus is a genus of fungus. Species grow in culture as yeasts. The perfect forms or teleomorphs of Cryptococcus species are filamentous fungi in the genus Filobasidiella...

  • Metastatic fungal endophthalmitis
  • Actinomyces
    Actinomyces
    Actinomyces from Greek "actino" that means mucus and fungus, is a genus of the actinobacteria class of bacteria. They are all Gram-positive and are characterized by contiguous spread, suppurative and granulomatous inflammation, and formation of multiple abscesses and sinus tracts that may...

  • Streptothrix

Systemic cestode and nematode infections

  • Cysticercosis
    Cysticercosis
    Cysticercosis refers to tissue infection after exposure to eggs of Taenia solium, the pork tapeworm. The disease is spread via the fecal-oral route through contaminated food and water, and is primarily a food borne disease. After ingestion the eggs pass through the lumen of the intestine into the...

     (tapeworm)
  • Echinococcosis
    Echinococcosis
    Echinococcosis, which is often referred to as hydatid disease or echinococcal disease, is a parasitic disease that affects both humans and other mammals, such as sheep, dogs, rodents and horses. There are three different forms of echinococcosis found in humans, each of which is caused by the larval...

     (hydatid cyst)
  • Toxocariasis
    Toxocariasis
    -History of discovery:Werner described a parasitic nematode in dogs in 1782 which he named Ascaris canis. Johnston determined that what Werner had described was actually a member of the genus Toxocara established by Stiles in 1905. Fữlleborn speculated that T canis larvae might cause granulomatous...

     (Toxocara)
  • Trichinosis
    Trichinosis
    Trichinosis, also called trichinellosis, or trichiniasis, is a parasitic disease caused by eating raw or undercooked pork or wild game infected with the larvae of a species of roundworm Trichinella spiralis, commonly called the trichina worm. There are eight Trichinella species; five are...

     (Trichinella
    Trichinella
    Trichinella is the genus of parasitic roundworms of the phylum Nematoda that cause trichinosis . Members of this genus are often called trichinella or trichina worms...

    )
  • Onchocerciasis
    Onchocerciasis
    Onchocerciasis , also known as river blindness and Robles' disease, is a parasitic disease caused by infection by Onchocerca volvulus, a nematode . Onchocerciasis is the world's second-leading infectious cause of blindness. It is not the nematode, but its endosymbiont, Wolbachia pipientis, that...

  • Loiasis (Loa loa
    Loa loa
    Loa loa is the filarial nematode species that causes Loa loa filariasis. It is commonly known as the "eye worm". Its geographic distribution includes Africa and India....

    )

Chromosomal disorders and genetic syndromes

  • Cri-du chat syndrome
  • Schmid-Fraccaro syndrome
  • Turner's syndrome
  • Ring-D chromosome
  • Monosomy-G syndrome
  • Trisomy 13 (Patau's syndrome, D-syndrome)
  • Trisomy 18 (Edwards' syndrome, E-syndrome)
  • Trisomy 21 (Down's syndrome, mongolism)
  • Deletion of long arm of chromosome 18
    Chromosome 18 (human)
    125px|rightChromosome 18 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 18 spans about 85 million base pairs and represents about 2.5 percent of the total DNA in cells.Identifying genes on each chromosome is an active area of genetic...

  • Deletion of chromosome 18
    Chromosome 18 (human)
    125px|rightChromosome 18 is one of the 23 pairs of chromosomes in humans. People normally have two copies of this chromosome. Chromosome 18 spans about 85 million base pairs and represents about 2.5 percent of the total DNA in cells.Identifying genes on each chromosome is an active area of genetic...

  • Ciliopathic genetic syndromes
    Ciliopathy
    A ciliopathy is a genetic disorder of the cellular cilia or the cilia anchoring structures, the basal bodies, or of ciliary function.Although ciliopathies are usually considered to involve proteins that localize to the primary cilia or centrosomes, it is possible for ciliopathies to be associated...

     -- A number of widely-variant genetic disorders with occular
    Retinopathy
    Retinopathy is a general term that refers to some form of non-inflammatory damage to the retina of the eye. Frequently, retinopathy is an ocular manifestation of systemic disease.-Pathophysiology:Causes of retinopathy are varied:...

     phenotype
    Phenotype
    A phenotype is an organism's observable characteristics or traits: such as its morphology, development, biochemical or physiological properties, behavior, and products of behavior...

    s have been identified with genotypical
    Genotype
    The genotype is the genetic makeup of a cell, an organism, or an individual usually with reference to a specific character under consideration...

     ciliopathy.

Cardiovascular diseases

  • Cardiovascular diseases
  • Arteriosclerosis
    Arteriosclerosis
    Arteriosclerosis refers to a stiffening of arteries.Arteriosclerosis is a general term describing any hardening of medium or large arteries It should not be confused with "arteriolosclerosis" or "atherosclerosis".Also known by the name "myoconditis" which is...

  • Hypertension
    Hypertension
    Hypertension or high blood pressure is a cardiac chronic medical condition in which the systemic arterial blood pressure is elevated. What that means is that the heart is having to work harder than it should to pump the blood around the body. Blood pressure involves two measurements, systolic and...

  • Pre-eclampsia
    Pre-eclampsia
    Pre-eclampsia or preeclampsia is a medical condition in which hypertension arises in pregnancy in association with significant amounts of protein in the urine....

     (Toxemia of pregnancy)
  • Occlusive vascular disease (sudden)
  • Emboli and thrombi
  • Central retinal artery occlusion
  • Cardiac myxoma
  • Cranial arteritis
  • Sickle cell attack
  • Occlusive vascular disease (slow, progressive)
  • Carotid artery disease
  • Arterial spasm (TIA)
  • Diabetes mellitus
    Diabetes mellitus
    Diabetes mellitus, often simply referred to as diabetes, is a group of metabolic diseases in which a person has high blood sugar, either because the body does not produce enough insulin, or because cells do not respond to the insulin that is produced...

  • Collagen diseases
  • Venous occlusive disease
  • Thrombosis
    Thrombosis
    Thrombosis is the formation of a blood clot inside a blood vessel, obstructing the flow of blood through the circulatory system. When a blood vessel is injured, the body uses platelets and fibrin to form a blood clot to prevent blood loss...

  • Use of hormonal contraception
    Hormonal contraception
    Hormonal contraception refers to birth control methods that act on the endocrine system. Almost all methods are composed of steroid hormones, although in India one selective estrogen receptor modulator is marketed as a contraceptive. The original hormonal method—the combined oral contraceptive...

  • Endocarditis
    Endocarditis
    Endocarditis is an inflammation of the inner layer of the heart, the endocardium. It usually involves the heart valves . Other structures that may be involved include the interventricular septum, the chordae tendineae, the mural endocardium, or even on intracardiac devices...

  • Myxoma
    Myxoma
    A myxoma is a tumor of primitive connective tissue. It is the most common primary tumor of the heart in adults, but can also occur in other locations....

  • Aortic arch syndrome (Takayasu)
  • Pre-eclampsia
    Pre-eclampsia
    Pre-eclampsia or preeclampsia is a medical condition in which hypertension arises in pregnancy in association with significant amounts of protein in the urine....

     (Toxemia of pregnancy)
  • Thromboangiitis obliterans
  • Hereditary telangiectasia (Rendu-Osler-Weber syndrome)

Endocrine diseases

  • Cushing's disease
    Cushing's disease
    Cushing's disease is a cause of Cushing's Syndrome characterised by increased secretion of adrenocorticotropic hormone from the anterior pituitary. This is most often as a result of a pituitary adenoma...

  • Addison's disease
    Addison's disease
    Addison’s disease is a rare, chronic endocrine disorder in which the adrenal glands do not produce sufficient steroid hormones...

  • Diabetes mellitus
    Diabetes mellitus
    Diabetes mellitus, often simply referred to as diabetes, is a group of metabolic diseases in which a person has high blood sugar, either because the body does not produce enough insulin, or because cells do not respond to the insulin that is produced...

  • Hyperparathyroidism
    Hyperparathyroidism
    Hyperparathyroidism is overactivity of the parathyroid glands resulting in excess production of parathyroid hormone . The parathyroid hormone regulates calcium and phosphate levels and helps to maintain these levels...

  • Hypoparathyroidism
    Hypoparathyroidism
    Hypoparathyroidism is decreased function of the parathyroid glands with under production of parathyroid hormone. This can lead to low levels of calcium in the blood, often causing cramping and twitching of muscles or tetany , and several other symptoms...

  • Hyperthyroidism
    Hyperthyroidism
    Hyperthyroidism is the term for overactive tissue within the thyroid gland causing an overproduction of thyroid hormones . Hyperthyroidism is thus a cause of thyrotoxicosis, the clinical condition of increased thyroid hormones in the blood. Hyperthyroidism and thyrotoxicosis are not synonymous...

  • Hypothyroidism
    Hypothyroidism
    Hypothyroidism is a condition in which the thyroid gland does not make enough thyroid hormone.Iodine deficiency is the most common cause of hypothyroidism worldwide but it can be caused by other causes such as several conditions of the thyroid gland or, less commonly, the pituitary gland or...


Gastrointestinal and nutritional disorders

  • Alcoholism
    Alcoholism
    Alcoholism is a broad term for problems with alcohol, and is generally used to mean compulsive and uncontrolled consumption of alcoholic beverages, usually to the detriment of the drinker's health, personal relationships, and social standing...

  • Crohn's disease
    Crohn's disease
    Crohn's disease, also known as regional enteritis, is a type of inflammatory bowel disease that may affect any part of the gastrointestinal tract from mouth to anus, causing a wide variety of symptoms...

  • Liver disease
    Liver disease
    Liver disease is a broad term describing any single number of diseases affecting the liver.-Diseases:* Hepatitis, inflammation of the liver, caused mainly by various viruses but also by some poisons , autoimmunity or hereditary conditions...

  • Malnutrition
    Malnutrition
    Malnutrition is the condition that results from taking an unbalanced diet in which certain nutrients are lacking, in excess , or in the wrong proportions....

  • Peptic ulcer disease
  • Pancreatic disease
    Pancreatic disease
    -Pancreatitis:Pancreatitis is inflammation of the pancreas. There are two forms of pancreatitis, which are different in causes and symptoms, and require different treatment:...

  • Regional enteritis or ulcerative colitis
    Ulcerative colitis
    Ulcerative colitis is a form of inflammatory bowel disease . Ulcerative colitis is a form of colitis, a disease of the colon , that includes characteristic ulcers, or open sores. The main symptom of active disease is usually constant diarrhea mixed with blood, of gradual onset...

  • Vitamin A deficiency
    Vitamin A deficiency
    Vitamin A deficiency is a lack of vitamin A in humans. It is common in developing countries but rarely seen in developed countries. Night blindness is one of the first signs of vitamin A deficiency. Xerophthalmia and complete blindness can also occur since Vitamin A has a major role in...

  • Vitamin B deficiency
  • Vitamin C deficiency
  • Hypervitaminosis A, B, and D
  • Whipple's disease
    Whipple's disease
    Whipple's disease is a rare, systemic infectious disease caused by the bacterium Tropheryma whipplei. First described by George Hoyt Whipple in 1907 and commonly considered a gastrointestinal disorder, Whipple's disease primarily causes malabsorption but may affect any part of the body including...


Metabolic disorders

  • Albinism
    Albinism
    Albinism is a congenital disorder characterized by the complete or partial absence of pigment in the skin, hair and eyes due to absence or defect of an enzyme involved in the production of melanin...

  • Alkaptonuria
    Alkaptonuria
    Alkaptonuria is a rare inherited genetic disorder of phenylalanine and tyrosine metabolism. This is an autosomal recessive condition that is due to a defect in the enzyme homogentisate 1,2-dioxygenase , which participates in the degradation of tyrosine...

  • Amyloidosis
    Amyloidosis
    In medicine, amyloidosis refers to a variety of conditions whereby the body produces "bad proteins", denoted as amyloid proteins, which are abnormally deposited in organs and/or tissues and cause harm. A protein is described as being amyloid if, due to an alteration in its secondary structure, it...

  • Chediak-Higashi syndrome
    Chédiak-Higashi syndrome
    Chédiak–Higashi syndrome is a rare autosomal recessive disorder that arises from a microtubule polymerization defect which leads to a decrease in phagocytosis. The decrease in phagocytosis results in recurrent pyogenic infections, partial albinism and peripheral neuropathy...

  • Cystinosis
    Cystinosis
    Cystinosis is a lysosomal storage disease characterized by the abnormal accumulation of the amino acid cystine. It is a genetic disorder that typically follows an autosomal recessive inheritance pattern. Cystinosis is the most common cause of Fanconi syndrome in the pediatric age group...

  • Fabry's disease
    Fabry's disease
    Fabry disease is a rare X-linked recessive lysosomal storage disease, which can cause a wide range of systemic symptoms...

  • Galactosemia
    Galactosemia
    Galactosemia is a rare genetic metabolic disorder that affects an individual's ability to metabolize the sugar galactose properly. Although the sugar lactose can metabolize to galactose, galactosemia is not related to and should not be confused with lactose intolerance...

  • Gaucher's disease
    Gaucher's disease
    Gaucher's disease is a genetic disease in which a fatty substance accumulates in cells and certain organs.Gaucher's disease is the most common of the lysosomal storage diseases. It is caused by a hereditary deficiency of the enzyme glucosylceramidase. The enzyme acts on the fatty acid...

  • Gout
    Gout
    Gout is a medical condition usually characterized by recurrent attacks of acute inflammatory arthritis—a red, tender, hot, swollen joint. The metatarsal-phalangeal joint at the base of the big toe is the most commonly affected . However, it may also present as tophi, kidney stones, or urate...

  • Hemochromatosis
  • Histiocytosis
    Histiocytosis
    In medicine, histiocytosis refers to an excessive number of histiocytes, , and is typically used to refer to a group of rare diseases which share this as a characteristic...

  • Homocystinuria
    Homocystinuria
    Homocystinuria, also known as cystathionine beta synthase deficiency or CBS deficiency, is an inherited disorder of the metabolism of the amino acid methionine, often involving cystathionine beta synthase...

  • Lipidoses
  • Marfan's syndrome
  • Marchesani's syndrome
  • Mucopolysaccharidosis
    Mucopolysaccharidosis
    Mucopolysaccharidoses are a group of metabolic disorders caused by the absence or malfunctioning of lysosomal enzymes needed to break down molecules called glycosaminoglycans - long chains of sugar carbohydrates in each of our cells that help build bone, cartilage, tendons, corneas, skin and...

  • Niemann-Pick disease
    Niemann-Pick disease
    Niemann–Pick disease refers to a group of fatal inherited metabolic disorders that are included in the larger family of lysosomal storage diseases .-Signs and symptoms:Symptoms are related to the organs in which they accumulate...

  • Osteogenesis imperfecta
    Osteogenesis imperfecta
    Osteogenesis imperfecta is a genetic bone disorder. People with OI are born with defective connective tissue, or without the ability to make it, usually because of a deficiency of Type-I collagen...

  • Wilson's disease
    Wilson's disease
    Wilson's disease or hepatolenticular degeneration is an autosomal recessive genetic disorder in which copper accumulates in tissues; this manifests as neurological or psychiatric symptoms and liver disease...


Musculoskeletal disease

  • Albright's disease (fibrous dysplasia of bone)
  • Apert's disease
  • Conradi's syndrome
  • Craniofacial syndromes
  • Facial deformity syndromes
  • Muscular dystrophy disorders
  • Myasthenia gravis
    Myasthenia gravis
    Myasthenia gravis is an autoimmune neuromuscular disease leading to fluctuating muscle weakness and fatiguability...

  • Osteogenesis imperfecta
    Osteogenesis imperfecta
    Osteogenesis imperfecta is a genetic bone disorder. People with OI are born with defective connective tissue, or without the ability to make it, usually because of a deficiency of Type-I collagen...

  • Paget's disease
    Paget's disease
    Sir James Paget, a surgeon and pathologist, described several diseases, including:* Paget's disease of bone * Paget's disease of the breast* Paget-Schroetter disease* Extramammary Paget's disease...


Pulmonary diseases

  • Asthma
    Asthma
    Asthma is the common chronic inflammatory disease of the airways characterized by variable and recurring symptoms, reversible airflow obstruction, and bronchospasm. Symptoms include wheezing, coughing, chest tightness, and shortness of breath...

  • Bronchiogenic carcinoma
  • Bronchiectasis
    Bronchiectasis
    Bronchiectasis is a disease state defined by localized, irreversible dilation of part of the bronchial tree caused by destruction of the muscle and elastic tissue. It is classified as an obstructive lung disease, along with emphysema, bronchitis, asthma, and cystic fibrosis...

  • Cystic fibrosis of the pancreas
  • Emphysema
    Emphysema
    Emphysema is a long-term, progressive disease of the lungs that primarily causes shortness of breath. In people with emphysema, the tissues necessary to support the physical shape and function of the lungs are destroyed. It is included in a group of diseases called chronic obstructive pulmonary...

  • Pneumonia
    Pneumonia
    Pneumonia is an inflammatory condition of the lung—especially affecting the microscopic air sacs —associated with fever, chest symptoms, and a lack of air space on a chest X-ray. Pneumonia is typically caused by an infection but there are a number of other causes...

    s
  • Tuberculosis
    Tuberculosis
    Tuberculosis, MTB, or TB is a common, and in many cases lethal, infectious disease caused by various strains of mycobacteria, usually Mycobacterium tuberculosis. Tuberculosis usually attacks the lungs but can also affect other parts of the body...


Renal disease

  • Alport's syndrome
  • Azotemia
    Azotemia
    Azotemia is a medical condition characterized by abnormally high levels of nitrogen-containing compounds, such as urea, creatinine, various body waste compounds, and other nitrogen-rich compounds in the blood...

     (acute and chronic pyelonephritis
    Pyelonephritis
    Pyelonephritis is an ascending urinary tract infection that has reached the pyelum or pelvis of the kidney. It is a form of nephritis that is also referred to as pyelitis...

    )
  • Lowe's syndrome
  • Medullary cystic disease
  • Nephrotic syndrome
    Nephrotic syndrome
    Nephrotic syndrome is a nonspecific disorder in which the kidneys are damaged, causing them to leak large amounts of protein from the blood into the urine....

     (acute glomerulonephritis, diabetic kidney, system lupus erythematosus)
  • Renal transplantation
  • Wilms' tumor
    Wilms' tumor
    Wilms' tumor or nephroblastoma is cancer of the kidneys that typically occurs in children, rarely in adults.Its common name is an eponym, referring to Dr. Max Wilms, the German surgeon who first described this kind of tumor....

     (nephroblastoma)

Neoplastic diseases with ocular metastases

  • Carcinoma
    Carcinoma
    Carcinoma is the medical term for the most common type of cancer occurring in humans. Put simply, a carcinoma is a cancer that begins in a tissue that lines the inner or outer surfaces of the body, and that generally arises from cells originating in the endodermal or ectodermal germ layer during...

     and sites of primary lesions
  • Blood
    Blood
    Blood is a specialized bodily fluid in animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells....

  • Leukemia
    Leukemia
    Leukemia or leukaemia is a type of cancer of the blood or bone marrow characterized by an abnormal increase of immature white blood cells called "blasts". Leukemia is a broad term covering a spectrum of diseases...

  • Lymphoma
    Lymphoma
    Lymphoma is a cancer in the lymphatic cells of the immune system. Typically, lymphomas present as a solid tumor of lymphoid cells. Treatment might involve chemotherapy and in some cases radiotherapy and/or bone marrow transplantation, and can be curable depending on the histology, type, and stage...

  • Breast
    Breast
    The breast is the upper ventral region of the torso of a primate, in left and right sides, which in a female contains the mammary gland that secretes milk used to feed infants.Both men and women develop breasts from the same embryological tissues...

  • Colon
    Colon (anatomy)
    The colon is the last part of the digestive system in most vertebrates; it extracts water and salt from solid wastes before they are eliminated from the body, and is the site in which flora-aided fermentation of unabsorbed material occurs. Unlike the small intestine, the colon does not play a...

  • Kidney
    Kidney
    The kidneys, organs with several functions, serve essential regulatory roles in most animals, including vertebrates and some invertebrates. They are essential in the urinary system and also serve homeostatic functions such as the regulation of electrolytes, maintenance of acid–base balance, and...

  • Lung
    Lung
    The lung is the essential respiration organ in many air-breathing animals, including most tetrapods, a few fish and a few snails. In mammals and the more complex life forms, the two lungs are located near the backbone on either side of the heart...

  • Genital organs
    Sex organ
    A sex organ, or primary sexual characteristic, as narrowly defined, is any of the anatomical parts of the body which are involved in sexual reproduction and constitute the reproductive system in a complex organism; flowers are the reproductive organs of flowering plants, cones are the reproductive...

  • Ovary
    Ovary
    The ovary is an ovum-producing reproductive organ, often found in pairs as part of the vertebrate female reproductive system. Ovaries in anatomically female individuals are analogous to testes in anatomically male individuals, in that they are both gonads and endocrine glands.-Human anatomy:Ovaries...

     or cervix
    Cervix
    The cervix is the lower, narrow portion of the uterus where it joins with the top end of the vagina. It is cylindrical or conical in shape and protrudes through the upper anterior vaginal wall...

  • Testis or prostate
    Prostate
    The prostate is a compound tubuloalveolar exocrine gland of the male reproductive system in most mammals....

  • Skin
    Skin
    -Dermis:The dermis is the layer of skin beneath the epidermis that consists of connective tissue and cushions the body from stress and strain. The dermis is tightly connected to the epidermis by a basement membrane. It also harbors many Mechanoreceptors that provide the sense of touch and heat...

  • Melanoma
    Melanoma
    Melanoma is a malignant tumor of melanocytes. Melanocytes are cells that produce the dark pigment, melanin, which is responsible for the color of skin. They predominantly occur in skin, but are also found in other parts of the body, including the bowel and the eye...

  • Gut
    Gut (zoology)
    In zoology, the gut, also known as the alimentary canal or alimentary tract, is a tube by which bilaterian animals transfer food to the digestion organs. In large bilaterians the gut generally also has an exit, the anus, by which the animal disposes of solid wastes...

  • Stomach
    Stomach
    The stomach is a muscular, hollow, dilated part of the alimentary canal which functions as an important organ of the digestive tract in some animals, including vertebrates, echinoderms, insects , and molluscs. It is involved in the second phase of digestion, following mastication .The stomach is...

  • Pancreas
    Pancreas
    The pancreas is a gland organ in the digestive and endocrine system of vertebrates. It is both an endocrine gland producing several important hormones, including insulin, glucagon, and somatostatin, as well as a digestive organ, secreting pancreatic juice containing digestive enzymes that assist...

  • Thyroid
    Thyroid
    The thyroid gland or simply, the thyroid , in vertebrate anatomy, is one of the largest endocrine glands. The thyroid gland is found in the neck, below the thyroid cartilage...

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