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Related Experiment Videos

[Nevoid bundle hairs].

U Wollina1, H Schaarschmidt, U Berger

  • 1Universitäts-Hautklinik Jena.

Der Hautarzt; Zeitschrift Fur Dermatologie, Venerologie, Und Verwandte Gebiete
|March 1, 1991
PubMed
Summary
This summary is machine-generated.

Naevoid bundle hair is a rare scalp condition where multiple hairs grow from a single follicle opening. This atavistic hair growth pattern shows unique protein reactivity in the hair root sheath.

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Area of Science:

  • Dermatology
  • Trichology
  • Hair Biology

Background:

  • Naevoid bundle hair is a rare congenital hair anomaly.
  • Understanding its pathogenesis is crucial for diagnosing hair disorders.

Observation:

  • Two cases of naevoid bundle hair of the scalp were clinically observed.
  • The condition presents as multiple hairs emerging from a single follicular ostium.

Findings:

  • Hairs originate from separate follicles but merge within a common outer hair root sheath.
  • Abnormal keratin reactivity and normal filaggrin reactivity were noted in the outer hair root sheath.

Implications:

  • Naevoid bundle hair may represent an atavistic (reversion to an ancestral) hair growth pattern.
  • Further research into the molecular basis of this condition is warranted.