A 27-year-old man presented with a 6-month history of a dark-reddish nodule on the dorsal aspect of the right fifth finger. The lesion was a smooth-surfaced asymptomatic polypoid feature, measuring 0.4×0.9×0.5cm. Past and personal history were unremarkable. The excisional biopsy specimen showed numerous nests of spindle cells with some epithelioid cells in the entire dermis. The junctional activity was not present. On immunohistochemical staining, nest cells were strong positive for S-100 protein, but weak positive for HMB-45. No relapse was noted during a period of 6-month follow-up. (Korean J Dermatol 2000;38(1):145~147)