Psoriasis confined to the nails.

A case is presented of a 49-year-old man with psoriasis limited to the nails for 12 years. The patient had no evidence of psoriasis elsewhere. He had been treated with a year-long course of griseofulvin and 2 months of weekly fluconazole without effect before the diagnosis of psoriasis was made by biopsy of the lateral nail fold. Options for the treatment of nail psoriasis are reviewed.