Diseases

Pilomatrixoma

A tumor composed of cells resembling those of the hair matrix, which undergo 'mummification' and may calcify. It is a relatively uncommon tumor, which may occur at any age from infancy. The majority of patients are under 20, and females are affected more than males. The lesion is usually a solitary deep dermal or subcutaneous tumor 3-30 mm in diameter, situated in the head, neck, or upper extremity. (From Rook et al., Textbook of Dermatology, 4th ed, p2401)

National Library of MedicineMedical Subject Headings2026

Structured Summary

Abstract

A tumor composed of cells resembling those of the hair matrix, which undergo 'mummification' and may calcify. It is a relatively uncommon tumor, which may occur at any age from infancy. The majority of patients are under 20, and females are affected more than males. The lesion is usually a solitary deep dermal or subcutaneous tumor 3-30 mm in diameter, situated in the head, neck, or upper extremity. (From Rook et al., Textbook of Dermatology, 4th ed, p2401)

MeSH Record

Classification

Broader headings

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MeSH Record

Synonyms

8 entry terms
  • Benign Pilomatricoma
  • Benign Pilomatrixoma
  • Calcifying Epithelioma of Malherbe
  • Epithelioma Calcificans Of Malherbe
  • Malherbe Calcifying Epithelioma
  • Pilomatricoma
  • Pilomatricoma, Benign
  • Pilomatrixoma, Benign

MeSH Record

Aspects Covered

39 allowable subheadings

Indexed with the subheadings blood, blood supply, cerebrospinal fluid, chemically induced, chemistry, classification, complications, congenital, diagnosis, diagnostic imaging, diet therapy, drug therapy, economics, embryology, enzymology, epidemiology, ethnology, etiology, genetics, history, immunology, metabolism, microbiology, mortality, nursing, parasitology, pathology, physiopathology, prevention & control, psychology, radiotherapy, rehabilitation, secondary, surgery, therapy, ultrastructure, urine, veterinary, virology.

MeSH Record

Indexing Annotation

benign or malignant; coordinate with SKIN NEOPLASMS + HAIR DISEASES

MeSH Record

History Note

94

MeSH Record

Previous Indexing

  • Skin Neoplasms (1966-1993)

MeSH Hierarchy

Tree Number

  1. C04w.557.470.565.625w

AMA Style

References

  1. National Library of Medicine. Pilomatrixoma. Medical Subject Headings (MeSH). 2026. Unique ID D018296. http://id.nlm.nih.gov/mesh/2026/D018296
  2. Pilomatrixoma. In: Wikipedia. https://en.wikipedia.org/wiki/Pilomatricoma
  3. Pilomatrixoma. In: Wikidata. https://www.wikidata.org/wiki/Q1704531