What is sebaceous nevus?
A nevus sebaceous (NEE vuhs sih BAY shus) is a type of birthmark that usually appears on the scalp. It may also appear on the face but this is less common. It is made of extra oil glands in the skin. It starts as a flat pink or orange plaque (slightly raised area). Hair does not grow in a nevus sebaceous.
What causes nevus sebaceous?
Linear nevus sebaceous syndrome (LNSS) can be caused by a somatic mutation in any of several genes, including the HRAS, KRAS and NRAS genes. Mutations that cause LNSS occur after fertilization (they are not inherited) and are only present in some body cells (mosaicism).
Should nevus sebaceous be removed?
Often, a sebaceous nevus is harmless and less noticeable than a birthmark on the face, and doctors may recommend putting off surgical removal until the child is a bit older.
How do you get rid of sebaceous nevus?
Small nevi can be removed by simple surgical excision. The nevus is cut out, and the adjacent skin stitched together leaving a small scar. Removal of a large congenital nevus, however, requires replacement of the affected skin.
What are the treatments for nevus sebaceous?
Sebaceous Hyperplasia Treatment Facial peels. One form of treatment for sebaceous hyperplasia is facial peels. Retinol. There is also a treatment for sebaceous hyperplasia called retinol. Laser therapy. There is also a sebaceous hyperplasia treatment by using a laser. Cryotherapy. Electrocautery. Photodynamic therapy. Surgery. Antiandrogen medications.
Is nevus sebaceous cancerous?
A nevus sebaceous is an unusual lesion or patch of hairless skin that most commonly appears on the scalp or face. In most cases, lesions are benign and do not cause health problems, though there is a very small chance that a nevus can become cancerous late in life.
Is nevus sebaceous hereditary?
Linear nevus sebaceous syndrome (LNSS) is not inherited. All cases reported have been sporadic, occurring by chance in people with no family history of the condition. [5] While LNSS is caused by genetic mutations, these mutations occur after fertilization in the affected person.
