Leonine facies: a face that resembles that of a lion

Lion

The lion is one of the four big cats in the genus Panthera, and a member of the family Felidae. With some males exceeding 250 kg in weight, it is the second-largest living cat after the tiger...

. It is seen in multiple conditions and has been classically described for Lepromatous leprosy as well as Paget's disease of bone

Paget's disease of bone

Paget's disease is a chronic disorder that can result in enlarged and misshapen bones. The excessive breakdown and formation of bone tissue causes affected bone to weaken, resulting in pain, misshapen bones, fractures, and arthritis in the joints near the affected bones...

. It is a dermatological symptom, with characteristic facial features that are visible on presentation and is useful for focusing on differential diagnosis

Differential diagnosis

A differential diagnosis is a systematic diagnostic method used to identify the presence of an entity where multiple alternatives are possible , and may also refer to any of the included candidate alternatives A differential diagnosis (sometimes abbreviated DDx, ddx, DD, D/Dx, or ΔΔ) is a...

.

Associated conditions

Differential diagnoses

Differential diagnosis

A differential diagnosis is a systematic diagnostic method used to identify the presence of an entity where multiple alternatives are possible , and may also refer to any of the included candidate alternatives A differential diagnosis (sometimes abbreviated DDx, ddx, DD, D/Dx, or ΔΔ) is a...

 include the following:

• Lepromatous 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...
  
  
• Paget's disease of bone
  Paget's disease of bone
  Paget's disease is a chronic disorder that can result in enlarged and misshapen bones. The excessive breakdown and formation of bone tissue causes affected bone to weaken, resulting in pain, misshapen bones, fractures, and arthritis in the joints near the affected bones...
  
  
• Mycosis fungoides
  Mycosis fungoides
  -External links:* * *...
  
  
• 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...
  
  
• Lichen myxedematosus
  Lichen myxedematosus
  Lichen myxedematosus is a group of cutaneous disorders considered mucinoses. Conditions included in this group are:* Generalized lichen myxedematosus* Localized lichen myxedematosus...
  
  
• Actinic reticuloid
• Leishmaniasis
  Leishmaniasis
  Leishmaniasis is a disease caused by protozoan parasites that belong to the genus Leishmania and is transmitted by the bite of certain species of sand fly...
  
  
• Lipoid proteinosis
• Progressive nodular histiocytosis
  Progressive nodular histiocytosis
  Progressive nodular histiocytosis is a cutaneous condition clinically characterized by the development of two types of skin lesions: superficial papules and deeper larger subcutaneous nodules....
  
  
• Mastocytosis
  Mastocytosis
  Mastocytosis is a group of rare disorders of both children and adults caused by the presence of too many mast cells and CD34+ mast cell precursors in a person's body.- Classification :Mastocytosis can occur in a variety of forms:...
  
  
• Hyperimmunoglobulin E syndrome