Trichofolliculoma

Updated: Nov 13, 2015
  • Author: Michael S Howard, MD; Chief Editor: Dirk M Elston, MD  more...
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Overview

Background

Trichofolliculoma represents an uncommon hamartoma of hair follicle tissue, typically occurring on the face of adults. [1]

Clinical appearance of trichofolliculoma. Clinical appearance of trichofolliculoma.

The prognosis is excellent, and therapy is usually directed toward cosmetic improvement.

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Pathophysiology

Although the precise etiology of trichofolliculoma is uncertain, these tumors are not associated with systemic disease or other skin disorders. Trichofolliculomas are believed to represent abortive differentiation of pluripotent skin cells toward hair follicles.

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Epidemiology

Frequency

Trichofolliculoma represents an uncommon clinical entity.

Race

In reported cases, trichofolliculomas demonstrate no definitive racial predilection.

Sex

No definitive sexual predilection is observed in reported cases, although sporadic reports indicate a probable male preponderance. [2]

Age

From published reports, trichofolliculoma appears to primarily be a tumor of adults; however, at least 1 case of congenital trichofolliculoma has been reported. [3]

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