Exostoses anetodermia brachydactyly type E

From WikiMD's Wellness Encyclopedia

Exostoses Anetodermia Brachydactyly Type E (EABE) is a rare genetic disorder characterized by the presence of multiple exostoses, anetodermia, and brachydactyly type E. This condition is part of a group of diseases that affect the development and growth of bones and skin. The specific combination of symptoms in EABE distinguishes it from other genetic conditions that may present with similar features.

Symptoms and Characteristics[edit | edit source]

EABE manifests through a triad of primary symptoms:

  • Exostoses: These are abnormal bony growths that emerge on the surface of bones, particularly near the growth plates. In EABE, exostoses can lead to deformities and may cause pain or discomfort.
  • Anetodermia: This skin condition involves the loss of dermal elastic tissue, resulting in localized areas of slack, sagging skin. These patches are typically non-inflammatory and can appear anywhere on the body.
  • Brachydactyly Type E: This refers to a specific form of shortening of the fingers and toes, primarily affecting the metacarpals and metatarsals. It is a distinguishing feature of the type E variant of brachydactyly.

Causes[edit | edit source]

The exact genetic cause of EABE remains unidentified. However, it is believed to be inherited in an autosomal dominant manner, suggesting that a single copy of the altered gene in each cell is sufficient to cause the disorder. Research is ongoing to pinpoint the specific genetic mutations responsible for EABE.

Diagnosis[edit | edit source]

Diagnosis of EABE is primarily clinical, based on the observation of its characteristic triad of symptoms. Imaging studies, such as X-rays, can reveal the presence of exostoses and the specific bone abnormalities associated with brachydactyly type E. Genetic testing may be helpful in confirming the diagnosis and understanding the inheritance pattern, although the responsible gene(s) have not yet been identified.

Treatment[edit | edit source]

There is no cure for EABE, and treatment focuses on managing symptoms and improving quality of life. Surgical intervention may be necessary to remove painful exostoses or correct bone deformities. Dermatological treatments, including the use of topical and systemic therapies, may help manage the skin symptoms associated with anetodermia. Physical therapy can also be beneficial in maintaining mobility and function in affected limbs.

Prognosis[edit | edit source]

The prognosis for individuals with EABE varies depending on the severity of symptoms and the extent of bone and skin involvement. With appropriate management, most individuals can lead active and productive lives.

See Also[edit | edit source]

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Contributors: Prab R. Tumpati, MD