Pilomatrixoma
| Classification according to ICD-10 | |
|---|---|
| D23.- | Other benign neoplasms of the skin |
| ICD-10 online (WHO version 2019) | |
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The Pilomatricoma (syn. Epithelioma calcificans Malherbe Malherbe tumor and kalzifizierendes epithelioma) is a benign , palpation of hard skin tumor, but which can be found especially in children, in all other age groups. The pilomatrixoma is derived from the hair matrix . It arises from a cystic structure that forms and calcifies (calcified) shadow cells inside , i.e. necrotic cells without a nucleus.
Calcifying epithelioma was described by Albert Malherbe and J. Chenantais in 1880 .
The pilomatrixoma must be differentiated from the pilomatrix carcinoma , a very rare malignant tumor that originates in the hair follicle apparatus and in very rare cases can arise from a pilomatrixoma.
In addition to humans, the pilomatrixoma has also been described in dogs , where it is relatively common; especially in terriers, especially the Kerry Blue Terrier . It is usually found in the area of the trunk.
Individual evidence
- ↑ Braun-Falco O., ea: Dermatologie und Venerologie , Springer, 2005, p. 1287, ISBN 3540405259 , here online .
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↑ A. Malherbe, J. Chenantais: Note on l'epitheliome calcifie des glandes sebacees. Prog Med 8 (1880). Pp. 826-828. To:
- M.-Y. Lan: Pilomatricoma of the Head and Neck: A Retrospective Review of 179 Cases. In: Archives of Otolaryngology - Head and Neck Surgery. 129, 2003, pp. 1327-1330, doi : 10.1001 / archotol.129.12.1327 .
- ↑ Altmeyer: Pilomatrixom (see literature ).
- ↑ Erwin Dahme, Eugen Weiss: Outline of the special pathological anatomy of domestic animals. Enke, 2007, ISBN 3-8304-1100-6 , p. 399.
literature
- P. Altmeyer: Pilomatrixom . In: Encyclopedia of Dermatology, Venereology, Allergology, Environmental Medicine (online edition)
- When the hair matrix runs amok. In: Doctors newspaper. Online from September 5, 2008.
