Seborrheic Keratosis With Prominent Clear Cell Changes—A Rare But Important Diagnostic Variant

Autor: Thomas H. Long, David Zlotnick, Stanley L. Hurst, Zsolt B. Argenyi
Rok vydání: 2018
Předmět:
Zdroj: The American Journal of Dermatopathology. 40:209-211
ISSN: 0193-1091
DOI: 10.1097/dad.0000000000000992
Popis: Seborrheic keratoses, although exceedingly common, occasionally have morphologic similarities to other lesions that complicate a typically straightforward diagnosis. The authors present a case of a 69-year-old man with a left shoulder lesion that displayed characteristic clinical and microscopic features of seborrheic keratosis on biopsy. However, diffuse and prominent clear cells were also noted. These stained strongly with Periodic acid-Schiff and were diastase sensitive, suggestive of glycogen accumulation and possible trichilemmal differentiation. This case is presented to demonstrate a unique and striking example of clear cell change within a seborrheic keratosis and to briefly review the published literature on this finding, which is rarely reported and demands close examination to exclude more aggressive neoplasms.
Databáze: OpenAIRE