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A tumor derived from epithelium; usually a skin cancer, occasionally cancer of a mucous membrane.



a benign or malignant tumor arising from surface epithelium, mainly of the skin and its appendages. In the USSR, the term is applied only to several rare skin tumors, for example, blue nevus (Borst-Jadossohn intradermal epithelioma) and calcifying epithelioma of Malherbe (pilomatricoma). It was formerly used to designate basal cell carcinoma (basal cell epithelioma) and squamous cell carcinoma of the skin (spinocellular epithelioma).

References in periodicals archive ?
Thomas J, Kathare S: Calcifying epithelioma of Malherbe, a true tumor or malformation?
Since then, this uncommon entity has been called calcifying epithelioma of Malherbe (2).
1) Pilomatricoma, or calcifying epithelioma of Malherbe, was first described in 1880 by Malherbe and Chenantais.