Desmoplastic Neurotropic Melanoma Presenting as Pilonidal Sinus: A Rare Clinical Association.

BACKGROUND Pilonidal Sinus (PNS) is a small cutaneous orifice in the intergluteal region; symptoms include pain and swelling. Disparately, desmoplastic neurotropic melanoma (DNM) accounts for 1% of all melanomas and mostly occurs in the head and neck region. Because its appearance is generally benign, it typically comes to surgical attention only at an advanced stage or after recurrence.