title: [Pili multigemini: a pilar dysplasia with linear disposition].
abstract: BACKGROUND
  Pili multigemini is an uncommon pilar dysplasia with linear disposition which could be explained by the pattern of Blaschko's lines.
  
  
  METHODS
  A 37-year-old man with no medical history developed pili multigemini over a heavily bearded chin.
  
  
  CONCLUSIONS
  Mili multigemini is an uncommon developmental defect of hair follicles resulting from hairs with multiple matrices and papillae emerging through a single pilosebaceous canal. This defect has a linear distribution on the chin we found to follow Blaschko's lines. Pili multigemini has been observed in association with a few rare malformations. Treatment is difficult.
authors.affiliation: Service de Dermatologie, Hôpital Laennec, CHIC, BP 1757, 29107 Quimper Cedex, France.
authors.forename: P
authors.initials: P
authors.lastname: Schoenlaub
authors.forename: P
authors.initials: P
authors.lastname: Hacquin
authors.forename: A
authors.initials: A
authors.lastname: Roguedas
authors.forename: J
authors.initials: J
authors.lastname: Leroy
authors.forename: P
authors.initials: P
authors.lastname: Plantin
mesh_terms: D000328:Adult; D002680:Chin; D005148:Facial Dermatoses / Q000151:congenital* / Q000473:pathology; D018859:Hair Follicle / Q000002:abnormalities* / Q000473:pathology; D006801:Humans; D008297:Male; D008859:Microscopy, Polarization