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1: J Dermatol. 1992 Oct;19(10):614-7.Links

Localized basaloid follicular hamartoma.

Kato N, Ueno H, Nakamura J.

Department of Dermatology, Otaru City General Hospital, Japan.

We report a 39-year-old Japanese woman with a 30 x 10 mm, skin-colored, soft, hairless, irregularly elevated plaque in the left retroauricular area. Histologically, it consistently showed features of atypical hair follicles; some showed immaturely developed basaloid epithelial islands invaginated with condensed stromal cells, and others were replaced or associated with solid strands, branching cords, or lace-like networks of undifferentiated basaloid cells. Although the clinical appearance of a typical localized basaloid follicular hamartoma is a plaque of alopecia, this case seems to be a variant, because the histological findings are so characteristic of the entity. The relationship of basaloid follicular hamartoma to other hair-follicle derived tumors is also considered.

PMID: 1491090 [PubMed - indexed for MEDLINE]