Annular Cutaneous Pili Migrans on the Scrotum: A Rare Clinical Presentation.

Cutaneous Pili Migrans is a rare creeping eruption typically presenting as a linear black track on the feet. Involvement of the scrotum is extremely uncommon, and an annular morphology has not been reported. A 40-year-old man presented with an asymptomatic black ring-like lesion beneath the scrotal epidermis. Dermoscopy revealed a thick circular hair shaft embedded with minimal inflammation, confirming the diagnosis. Without intervention, the lesion spontaneously resolved within one month. This first report of annular scrotal Cutaneous Pili Migrans expands the clinical spectrum and highlights the role of dermoscopy in avoiding unnecessary procedures.