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Congenital Triangular Alopecia - A Case Report.

Dhruv Ramanbhai Patel1, Jinal Jainendrabhai Tandel1, Pragya Ashok Nair1

  • 1Department of Dermatology, Shree Krishna Hospital, Karamsad, Gujarat, India.

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Summary
This summary is machine-generated.

Congenital triangular alopecia, a hair loss condition, can appear at birth or in childhood. Diagnosis relies on specific features, and treatment is often unnecessary.

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Dermatoscopyminoxidiltemporal triangular alopeciavellus hair

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Area of Science:

  • Dermatology
  • Pediatric Dermatology
  • Trichology

Background:

  • Congenital triangular alopecia (CTA), also known as temporal triangular alopecia or Brauer nevus, is a benign condition.
  • It can be present at birth or acquired within the first decade of life.
  • CTA presents as a distinct patch of hair loss, typically triangular, oval, or lancet-shaped, often on the temporal or frontal scalp.

Observation:

  • CTA may be misdiagnosed as other alopecias like alopecia areata, traction alopecia, or trichotillomania.
  • Differential diagnosis also includes tinea capitis and aplasia cutis congenita.
  • Histopathological and dermoscopic examinations are crucial for accurate diagnosis.

Findings:

  • There is currently no universally effective treatment for congenital triangular alopecia.
  • In many cases, therapeutic intervention is not required due to the benign nature of the condition.
  • Potential treatment options, though often ineffective, include topical minoxidil, surgical excision, and hair transplantation.

Implications:

  • Accurate diagnosis of CTA is important to avoid unnecessary investigations and treatments for other conditions.
  • Understanding the natural course of CTA can help manage patient and parental expectations.
  • Further research may explore more effective management strategies for cosmetic concerns, if any.