Giant Congenital Melanocytic Nevi: Case Report and Review of Literature

Abstract

Background: Giant congenital melanocytic nevus is defined as a melanocytic lesion present at birth that reaches a diameter of more than 20 cm in adulthood. Its incidence is estimated as below 1:500,000 newborns. These lesions have a major psychosocial impact on the patient and the family because of its unsightly appearance in addition to neurological complications and high risk of malignant transformation into a melanoma. Case: A 6-month-old girl presented with hyperpigmented skin lesions over the back, gluteal regions, perineum, thighs, and scalp since birth with a progressive increase in number and sizes of satellite lesions all over the body. A clinical diagnosis of giant cell melanocytic nevi was made because of the sizes, location, and color of the lesions. Although she was planned to have a thorough neurological assessment due to the number and sizes of the lesions, she was lost to follow-up because of financial constraints and the perception that no medical/surgical intervention could be offered to her. Conclusions: Giant congenital melanocytic nevi are rarely seen or reported. It is however worthy to note that adequate investigation, proper and effective communications between physicians and the parents/patient, and monitoring for neurological complications are essential in ensuring satisfaction in the quality of life of these patients.