Hair follicle nevus of the abdominal skin: an unusual extracephalic presentation

Pediatr Dermatol. 2014 May-Jun;31(3):e85-6. doi: 10.1111/pde.12315. Epub 2014 Mar 6.

Abstract

Hair follicle nevus (HFN) is a rare hamartoma typically diagnosed on the face of infants, where it may clinically mimic an accessory tragus. We report a 6-month-old boy who presented with a congenital fleshy, bilobed papule in the midline of his upper abdomen that upon excision was classified as an HFN based on detailed histopathologic examination. Our report documents a previously undescribed extracephalic location of the HFN and therefore expands the spectrum of clinical presentations of this rare hamartoma.

Publication types

  • Case Reports

MeSH terms

  • Abdomen
  • Biopsy
  • Diagnosis, Differential
  • Hair Diseases / pathology*
  • Hair Follicle / pathology*
  • Hamartoma / pathology*
  • Humans
  • Infant
  • Male
  • Nevus / pathology*
  • Skin Neoplasms / pathology*