CREST syndrome
Encyclopedia
The limited cutaneous form of systemic scleroderma (lcSSc) is often referred to as CREST syndrome. "CREST" is an acronym for the five main features:
  • Calcinosis
    Calcinosis
    -Dystrophic calcification:The most common type of calcinosis is dystrophic calcification. This type of calcification can occur as a response to any soft tissue damage, including that involved in implantation of medical devices.-Metastatic calcification:...

  • Raynaud's syndrome
    Raynaud's phenomenon
    In medicine, Raynaud's phenomenon is a vasospastic disorder causing discoloration of the fingers, toes, and occasionally other areas. This condition can also cause nails to become brittle with longitudinal ridges. Named for French physician Maurice Raynaud , the phenomenon is believed to be the...

  • Esophageal dysmotility
    Esophageal motility disorder
    An esophageal motility disorder is a medical disorder causing difficulty in swallowing, regurgitation of food and a spasm-type pain which can be brought on by an allergic reaction to certain foods and by autoimmune disease affecting the muscles such as myositis.- Anatomy :The tubular esophagus is a...

  • Sclerodactyly
    Sclerodactyly
    Sclerodactyly is a localized thickening and tightness of the skin of the fingers or toes. Sclerodactyly is commonly accompanied by atrophy of the underlying soft tissues....

  • Telangiectasia
    Telangiectasia
    Telangiectasias /tɛ.læn.dʒiː'ɛk.teɪ.ʃi:ə/ are small dilated blood vessels near the surface of the skin or mucous membranes, measuring between 0.5 and 1 millimeter in diameter. They can develop anywhere on the body but are commonly seen on the face around the nose, cheeks, and chin...



It is a form of systemic scleroderma associated with antibodies against centromeres and usually spares the kidneys. If the lungs are involved it is usually in the form of pulmonary arterial hypertension.

CREST is a systemic inflammatory rheumatic disease and usually results in more pathologies than the five symptoms above.

Patients with lcSSc commonly and slowly produce a pulmonary artery hypertension which can result in heart failure. Blood vessel thrombosis and arteriosclerosis has also led to the necessity of amputation of fingers. Open leg sores can result from burst blood vessels and thin skin, leading to chronic infections. Other symptoms of CREST patients can be exhaustion, weakness, difficulties with breathing, dizziness and badly healing wounds.

The origin of CREST lies in the immune system. There is production of anti-nuclear and anti-centromere antibodies
Anti-centromere antibodies
Anti-centromere antibodies occur in auto immune disorders; frequently in limited systemic scleroderma, , and, occasionally are found in the diffuse form of scleroderma...

, although it is not known if these antibodies are involved in the cause of the symptoms of the disease. There is no known infectious cause.

There is no cure for this disease as there is no cure for scleroderma in general. It slowly progresses and should be examined and treated as soon as it has been diagnosed with immunosuppressives and other medications. There are treatments that can ameliorate the symptoms of esophageal reflux, pulmonary hypertension and Raynaud phenomenon.
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