Management of Hidden Cutaneous Melanoma of the Umbilicus.

Melanoma is currently the fifth most common cancer in the United States (US) and most often develop on areas that have increased sun exposure, such as the arms, legs, back or face. The incidence of primary cutaneous melanoma increases each year and curative treatment improves with earlier detection of disease. Primary cutaneous umbilical melanoma is extremely rare with as few as 46 cases reported worldwide. As a result, limited literature is available regarding the management of tumors originating in the umbilicus. By evaluating uncommon areas such as the umbilicus, earlier detection and possible intervention can be provided. We present a rare case of a 33-year-old female with a primary cutaneous melanoma of the umbilicus successfully treated with wide local excision (WLE) and sentinel lymph node biopsy (SLNB).