Anterior cervical hypertrichosis with linear and whorled nevoid hypermelanosis in a 12-year-old girl: A rare association.

Anterior cervical hypertrichosis (ACH) is a very rare form of primary localized hypertrichosis. It is characterized by a tuft of terminal hairs on the anterior neck just above the laryngeal prominence. Although it frequently presents with an isolated defect, it can be associated with other abnormalities. Here, we report the case of a 12-year-old girl who presented to our outdoor with a complaint of localized excessive hairs over the anterior aspect of the neck. She also gave a history of the persistence of irregular hyperpigmented areas on the right cheek. The diagnosis of ACH with linear and whorled nevoid hypermelanosis was made. Their concurrence might be coincidental. So far, ACH associated with linear whorled nevoid hypermelanosis has not been reported in the literature. [ABSTRACT FROM AUTHOR]