Congenital melanocytic nevus
Congenital Melanocytic Nevus
Congenital melanocytic nevus (pronunciation: kənˈjenɪtl mɛləˈnɒsɪtɪk ˈniːvəs) is a type of melanocytic nevus, or mole, that is present at birth or appears within the first year of life. The term is derived from the Latin congenitus meaning "born with" and the Greek melas and nevo meaning "black" and "birthmark" respectively.
Definition
A congenital melanocytic nevus is a proliferation of benign melanocytes that are present at birth or shortly thereafter. These melanocytes are skin cells that produce the pigment melanin, which gives color to the skin, hair, and eyes.
Classification
Congenital melanocytic nevi can be classified based on their size. Small nevi are less than 1.5 cm in diameter, medium nevi are 1.5-19.9 cm, and large or giant nevi are greater than 20 cm. The larger the nevus, the greater the risk for melanoma, a type of skin cancer.
Treatment
Treatment options for congenital melanocytic nevus include observation, surgical excision, or laser therapy. The choice of treatment depends on the size, location, and potential for malignancy.
Related Terms
See Also
External links
- Medical encyclopedia article on Congenital melanocytic nevus
- Wikipedia's article - Congenital melanocytic nevus
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