Subungual Melanoma of the Toenail Presenting as Dystrophic Discoloration: A Case Report

Subungual melanoma (SUM) is a rare form of cutaneous melanoma that often presents with advanced disease due to delay in diagnosis or misdiagnosis. Here we share a case of subungual melanoma that presented to us; 48-year-old man with SUM of the third toenail that was initially believed to be onychomycosis. As a result, it is concluded that structured algorithmic approach is paramount to investigating pigmented lesions of the nail in order facilitate earlier diagnosis of SUM, to limit the possibility of life-threatening complications.