Home > E. Pathology by systems > Skin > Hair > hair shaft anomalies

hair shaft anomalies

Wednesday 2 February 2005

Types

- hair shaft structural defects with increased fragility

  • moniletrix (beading of hair)
  • pseudomonilethrix
  • pili torti (twisting of hair)
  • Bjornstad syndrome - Crabdall syndrome
  • Netherton syndrome
  • trichorrhexis nodosa
  • trichothiodystrophy
  • Marinesco-Sj√∂gren syndrome

- hair shaft structural defects usually without increased fragility

  • pili annaulati (ringed hair)
  • woolly hair
  • acquired progressive kinking of the hair
  • Uncombable hair syndrome
  • straight hair nevus
  • loose anagen hair syndrome

- hair shaft pigmentation anomalies

- other anomalies of the hair shaft

  • trichoclasis
  • trichoptilosis
  • circle hairs
  • trichomalacia
  • trichoschisis
  • Pohl-Pinkus constriction
  • tapered hairs
  • bayonet hairs
  • trichonodosis (knotted hairs)
  • trichostasis spinulosa
  • multiple hair
  • peripilar keratin casts (pseudonits)
  • weathering of the hair shaft
  • hair shaft longitudinal ridging and grooving
  • bubble hair

Hair shaft lesions

- hair shaft nodes

  • trichorrhexis nodosa

- paint-brush tip

  • trichorrhexis nodosa

See also

- hair shafts