Catalog
Congenital melanocytic naevus
Link to WHO Definition
Congenital melanocytic naevus – http://id.who.int/icd/entity/887489797
Congenital melanocytic naevi are circumscribed areas of skin pigmentation present at birth as a result of abnormal intrauterine proliferation of melanocytes within the dermis, the epidermis or both. They may range in size from a few millimetres to many centimetres in diameter. If their projected or final adult maximal diameter is greater than 20 cm they are termed giant congenital melanocytic naevi.