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Congenital triangular alopecia (Brauer nevus)

M J García-Hernández1, A Rodríguez-Pichardo, F Camacho

  • 1Department of Medical-Surgical Dermatology and Venereology, Virgen Macarena University Hospital, Seville, Spain.

Pediatric Dermatology
|December 1, 1995
PubMed
Summary

Congenital triangular alopecia presents as hair loss patches in children aged 3-5. Surgical treatment is effective for women with this benign condition.

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Area of Science:

  • Dermatology
  • Pediatric Dermatology
  • Trichology

Background:

  • Congenital triangular alopecia (CTA) is a rare, benign hair loss condition.
  • Typically presents in early childhood (3-5 years) with frontotemporal patches.
  • Distinguishing CTA from alopecia areata is crucial in pediatric diagnosis.

Observation:

  • A study identified 7 cases of CTA among 6200 patients, indicating a prevalence of 0.11%.
  • CTA is characterized by unilateral or bilateral hair loss in the frontotemporal region.
  • The condition is generally nonprogressive and often underreported due to its benign nature.

Findings:

  • The prevalence of congenital triangular alopecia was found to be 0.11% in the observed patient cohort.
  • Differential diagnosis is essential during early childhood to distinguish CTA from other forms of alopecia.
  • While males may not require intervention due to later androgenic alopecia, women can achieve successful outcomes with surgical treatment.

Implications:

  • Early diagnosis and appropriate management are key for congenital triangular alopecia.
  • Surgical intervention offers a successful treatment option for women affected by CTA.
  • Further research may elucidate the underlying mechanisms and long-term prognosis of this rare condition.

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