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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 ?
Noguchi H, Hayashibana T, Ono T: A statistical study of calcifying epithelioma, focusing on the site of origin.
Giant calcifying epithelioma of Malherbe (pilomatrixoma): Imaging features.
Since then, this uncommon entity has been called calcifying epithelioma of Malherbe (2).
and graded lesions forward to the point in the 1920s at which the grading of various squamous-cell epitheliomas had become routine.
Multiple familial trichoepithelioma (MFT) is also called as epithelioma adenoids cysticum and Brooke-Fordyce trichoepitheliomas.
Muir-Torre syndrome-associated sebaceous gland neoplasms include sebaceous adenoma, sebaceoma/sebaceous epithelioma, sebaceous carcinoma, keratoacanthoma with sebaceous differentiation, and basal cell carcinoma (BCC) with sebaceous differentiation.