Hair follicle nevusD23.L

Author:Prof. Dr. med. Peter Altmeyer

All authors of this article

Last updated on: 29.10.2020

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Synonym(s)

Congenital vellus hair hamartoma; Hair follicle nevus; Nevus Hair follicle nevus; pilo-follicular nevus

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DefinitionThis section has been translated automatically.

Very rare, benign, congenital, circumscribed hypertrichosis due to the multiplication of immature hair follicles. There is a clinical relation to the Becker nevus.

EtiopathogenesisThis section has been translated automatically.

Probably remains of embryonic hair germs.

ManifestationThis section has been translated automatically.

From birth or in early youth.

LocalizationThis section has been translated automatically.

Face, especially nose, nasolabial folds, chin, also ears.

HistologyThis section has been translated automatically.

Numerous normally immature hair follicles that do not branch and contain small dystrophic hairs. The epidermis is slightly bulging and narrowed.

TherapyThis section has been translated automatically.

Excision if necessary.

LiteratureThis section has been translated automatically.

  1. Davis DA, Cohen PR (1996) Hair follicle naevus: Case report and review of literature. Pediatric Dermatol 13: 135-138
  2. Germain M et al (2002) Hair follicle nevus in a distribution following Blaskho's lines. J Am Acad Dermatol 46: S125-127
  3. Ikeda S et al (2003) A case of unilateral, systematized linear hair follicle nevi associated with epidermal nevus-like lesions. Dermatology 206: 172-174
  4. Kuwahara H et al (2001) Hair follicle nevus occurring in frontonasal dysplasia: an electron microscopic observation. J Dermatol 28: 324-328

Authors

Last updated on: 29.10.2020

Author: Prof. Dr. med. Peter Altmeyer