Description

A 20-year-old man was assessed for a genital ulcer that developed after an episode of orchiepididymitis. On the initial physical examination, a grey longitudinal melanonychia was found on the left index finger, measuring 4.5 mm in diameter, with mild subungual hyperkeratosis (figure 1A, B). A longitudinal nail biopsy was performed (figure 2A) and the histological analysis revealed a pigmented squamous cell carcinoma (SCC) (figure 2B). Total nail apparatus excision with placement of a full-thickness graft harvested from the retroauricular area …