Also known as congenital melanocytic nevus or birthmark.
Summary
Congenital non-neoplastic nevi are common skin growths present from birth. They consist of clusters of pigmented skin cells and are generally harmless, but may require monitoring for changes.
Causes
The condition arises from a collection of pigmented cells (melanocytes) during fetal development. It is primarily a genetic occurrence.
Risk Factors
Genetic predisposition. The exact molecular causes continue to be studied, but individuals with a family history of nevi may be more likely to have them.
Symptoms
Typically appear as dark, flat, or raised marks on the skin. They vary in size from small to large and can be located anywhere on the body.
Diagnosis
Diagnosed through physical examination by a healthcare provider.
Dermatoscopy may be used for closer examination.
In some cases, a biopsy may be conducted to rule out malignancy if changes in the nevus occur.
Treatment Options
Most nevi require no treatment.
Surgical removal might be considered for cosmetic reasons or if there is a concern about potential malignancy.
Laser therapy may be an option for cosmetic management.
Prognosis and Follow-Up
Generally benign with an excellent prognosis.
Regular monitoring is important, especially for large congenital nevi, as there is a small risk of developing melanoma.
Complications
Potential developing into melanoma, though this is rare.
Psychological impacts due to cosmetic appearance.
Lifestyle & Prevention
Regular skin checks for any changes in existing nevi.
Protection from excessive sun exposure to reduce potential risk of changes.
When to Seek Professional Help
Any change in size, color, or texture of a nevus.
Development of symptoms like bleeding, itching, or pain.