Giant congenital nevus
Alternate Names : Congenital giant pigmented nevus, Giant hairy nevus, Giant pigmented nevus, Bathing trunk nevus, Congenital melanocytic nevus - large
Treatment
Treatment consists of frequent examination to check for skin cancers and, when possible, surgery to remove the nevus. Skin grafting is done when necessary. Larger nevi may need to be removed in several stages. Lasers and dermabrasion (link) can also be used to improve the appearance. However, using these techniques may not remove the entire birthmark, and may make it harder to diagnose skin cancer (melanoma).
Psychological treatment can help with the emotional impact of having a disfiguring disorder.
Prognosis (Expectations)
Skin cancer (such as malignant melanoma and other types) may develop in up to 15% (1 out of 6) of people with larger or giant nevi, often in childhood. The risk is higher for larger or giant congenital nevi located on the back or abdomen.
Complications
- Depression and other emotional problems (due to appearance)
- Skin cancer (melanoma)
Rarely, bathing trunk nevi occur with a condition that causes a growth of pigment-producing cells in the head (leptomeningeal melanocytosis). Complications include:
Calling Your Health Care Provider
This condition is usually diagnosed at birth. Call for an appointment with your health care provider (or mention it during a well-baby exam) if your child has a large pigmented area anywhere on the skin.
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