Acquired trichorrhexis nodosa: how to diagnose it?

Dermatol Online J

Cátedra de Dermatología, Hospital de Clínicas, Dr. Manuel Quintela, Montevideo.

Published: November 2018

AI Article Synopsis

  • Acquired trichorrhexis nodosa is a rare hair condition caused by environmental factors, particularly certain chemicals affecting the hair cuticle.
  • The report examines a specific case using various diagnostic methods like trichoscopy, optical microscopy, and scanning electron microscopy, highlighting their effectiveness and accessibility issues.
  • The study concludes that a thorough clinical history and examination with a dermatoscope using non-polarized light are sufficient for diagnosing this condition effectively and affordably.

Article Abstract

Acquired trichorrhexis nodosa is an uncommon hair disorder, defined as a cuticle response to extrinsic or environmental insults, such as certain chemical agents. In the following report, we present a clinical case of acquired trichorrhexis nodosa and make a critical comparison by trichoscopy, optical microscopy, and scanning electron microscopy. Some diagnostic tools can provide high quality information, but their high cost and low access make them an inconvenient option. When comparing the cost-benefit ratio of each one, we conclude that acquired trichorrhexis nodosa can be easily diagnosed with a careful clinical history and examination using a dermatoscope with non-polarized light.

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