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A tumor derived from epithelium; usually a skin cancer, occasionally cancer of a mucous membrane.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



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).

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
(9.) Thomas J, Kathare S: Calcifying epithelioma of Malherbe, a true tumor or malformation?
DISCUSSION: Pilomatricoma is a benign tumour of hair matrical differentiation also known as calcifying epithelioma of Malherbe. (3) The name 'Pilomatricoma' was given by Forbes and Helwig.
Pilomatrixoma, also known as pilomatricoma and calcifying epithelioma of Malherbe, is a rare, benign tumor that originates in the cells of the hair follicle matrix.
(2) Pilomatricomas (calcifying epithelioma of Malherbe) are benign appendage tumors related to hair cells matrix.
INTRODUCTION: Pilomatrixoma or Calcifying epithelioma of Malherbe is a relatively uncommon benign skin adenexal tumor.
Since then, this uncommon entity has been called calcifying epithelioma of Malherbe (2).It was believed to be a rare tumor, but increasing reports in the literature show that it is not uncommon.