Trichoepithelioma, not Basal cell carcinoma, in an 8-year-old child.

摘要

We read with some perplexity the brief report by Landau et al (1) describing a basal cell carcinoma (BCC) in an 8-year-old child. The authors point out that a solitary trichoepithelioma (TE) was in their differential diagnosis clinically and histologically, and we believe this is the correct diagnosis in their case. It can be difficult to distinguish between TE and the TE-like variant of BCC. The diagnosis should be based primarily on the morphologic features on routine sections. Immunohistochemistry may serve as an adjunct to support the favored morphologic diagnosis, but the interpretation of immunostaining patterns is fraught with pitfalls.