Hair follicle nevus in a 2-year old

Pediatr Dermatol. 2008 Jan-Feb;25(1):60-2. doi: 10.1111/j.1525-1470.2007.00584.x.


We report a 2-year-old boy with an elastic soft, flatly elevated, skin-colored nodule on his nasal ala. Histologic examination revealed numerous small hair follicles in several stages of maturation in the dermis. Serial sections did not show any cartilage or a central epithelial lined cystic structure. Based on clinico-pathologic findings, we diagnosed this lesion as a hair follicle nevus. Hair follicle nevus is quite rare. Histologically, it is very important not to find cartilage or a central epithelial lined cystic structure for distinction from an accessory auricle and from a trichofolliculoma, respectively. Awareness of the clinical and pathologic characterization of hair follicle nevus is an aid to a correct diagnosis.

Publication types

  • Case Reports
  • Review

MeSH terms

  • Biopsy, Needle
  • Child, Preschool
  • Follow-Up Studies
  • Hair Follicle / pathology*
  • Humans
  • Immunohistochemistry
  • Male
  • Nevus / diagnosis
  • Nevus / pathology*
  • Nose
  • Rare Diseases
  • Risk Assessment
  • Skin Neoplasms / diagnosis
  • Skin Neoplasms / pathology*