A case of rippled-pattern sebaceoma

Rippled-pattern sebaceoma, a very rare histologic variant of sebaceoma, manifests as a peculiar arrangement of basaloid cells in linear and parallel rows, resembling Verocay bodies. It represents dermal aggregations composed of small, monomorphous, basaloid, sebaceous germinative cells. It has a tendency to occur in men, with the scalp as the predilection site. To our knowledge, only one case has been reported to date in the Korean dermatologic literature. Here, we report a case of rippled-pattern sebaceoma that appeared as a flesh nodule on the occiput and had been present for 4 years in a 41-year-old man.