title: Atypical clear cell acanthoma.
abstract: Two cases of clear cell acanthoma (CCA) with marked signs of cellular atypia and mitotic figures are reported. Although the nature of CCA is not completely understood, it is considered to be a benign epithelial tumor. Our cases show that these lesions can develop malignant features.
authors.affiliation: Department of Dermatology, Soroka Medical Center, Beer-Sheva, Israel.
authors.forename: M H
authors.initials: MH
authors.lastname: Grunwald
authors.forename: A
authors.initials: A
authors.lastname: Rothem
authors.forename: S
authors.initials: S
authors.lastname: Halevy
mesh_terms: D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D012878:Skin Neoplasms / Q000473:pathology*