Anais Brasileiros de Dermatologia
On-line version ISSN 1806-4841
CUNHA FILHO, Roberto Rheingantz da; ALMEIDA JR, Hiram Larangeira de; ROCHA, Nara Moreira and CASTRO, Luis Antônio Suita de. Uncombable hair syndrome (pili trianguli et canaliculi): clinical variation in 12 members of one family. An. Bras. Dermatol. [online]. 2008, vol.83, n.1, pp.53-55. ISSN 1806-4841. http://dx.doi.org/10.1590/S0365-05962008000100008.
Pili canaliculi is rare hair disorder, usually inherited as an autosomal dominant trait, clinically characterized by uncombable hair. Few studies report its clinical variability. A family with 12 affected individuals was examined and involvement of hairs ranged from uncombable hairs, mild or intense hypotrichosis to acquired atrichia. Optical microscopy of hair cross sections, stereomicroscopy and scanning electron microscopy confirmed the diagnosis and showed hair shafts with characteristic longitudinal grooves.
Keywords : Alopecia; Hair; Hair diseases; Microscopy; Microscopy, electron, scanning; Pedigree; Syndrome.