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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)

Year introduced: 1994

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Tree Number(s): C04.557.470.565.625

MeSH Unique ID: D018296

Entry Terms:

  • Benign Pilomatrixoma
  • Pilomatrixoma, Benign
  • Pilomatricoma
  • Epithelioma Calcificans Of Malherbe
  • Malherbe Calcifying Epithelioma
  • Benign Pilomatricoma
  • Pilomatricoma, Benign
  • Calcifying Epithelioma of Malherbe

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