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Updated: Jun 11, 2026

Flat Mount Imaging of Mouse Skin and Its Application to the Analysis of Hair Follicle Patterning and Sensory Axon Morphology
13:58

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[Cutaneous pili migrans].

D Q Luo1, Y K Zhao, J H Liu

  • 1MMS, Service de dermatologie, Huangpu Hospital of The First Affiliated Hospital, Sun Yat-sen University, 183, Huangpu Road E., Guangzhou 510700, P. R. China. luodq@mail.sysu.edu.cn

Annales De Dermatologie Et De Venereologie
|July 13, 2010
PubMed
Summary
This summary is machine-generated.

Cutaneous pili migrans is a rare skin condition where a hair shaft causes a creeping eruption. Prompt removal of the hair shaft leads to complete healing.

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Area of Science:

  • Dermatology
  • Medical Case Reports

Background:

  • Cutaneous pili migrans is a rare condition caused by an embedded hair shaft in the skin.
  • It presents as a creeping eruption with a characteristic black line at the advancing edge.
  • The condition can be mistaken for cutaneous larva migrans.

Observation:

  • A case report details a 38-year-old woman with a 30-day history of a painful, slowly moving black linear eruption on her left foot.
  • The lesion extended and caused pain, particularly with rapid walking.
  • A black hair shaft was successfully removed from the lesion.

Findings:

  • Pili migrans is extremely rare, with only 22 cases reported.
  • Hair shafts penetrate the epidermis, often after minor injury or spontaneously.
  • The clinical presentation mimics that seen in hairdressers, but without lesion migration.

Implications:

  • Highlights the importance of recognizing cutaneous pili migrans as a distinct dermatological entity.
  • Demonstrates that simple hair shaft removal can resolve the condition.
  • Contributes to the limited case data on this rare phenomenon.