Nevus sebaceous

Nevus sebaceous is a skin condition that typically appears at birth or in early childhood. It is characterized by a patch of skin that is hairless and often yellowish in color. This condition is benign, but it can sometimes develop into a malignant tumor.

Symptoms

The most common symptom of nevus sebaceous is a patch of skin that is hairless and often yellowish in color. This patch can be located anywhere on the body, but it is most commonly found on the scalp or face. The size of the patch can vary, but it often grows in size as the individual ages.

Causes

Nevus sebaceous is caused by a mutation in the HRAS gene. This mutation is not inherited, but occurs spontaneously in the skin cells of the affected individual. The exact reason why this mutation occurs is not known.

Diagnosis

The diagnosis of nevus sebaceous is typically made based on the appearance of the skin. In some cases, a skin biopsy may be performed to confirm the diagnosis.

Treatment

The treatment for nevus sebaceous often involves surgical removal of the affected skin. This is done to prevent the development of a malignant tumor. In some cases, laser treatment may be used instead of surgery.

See also

• Dermatology
• Skin conditions
• Genetic disorders

Nevus sebaceous Resources
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