Congenital Triangular Alopecia

  • Francesco Lacarrubba
  • Anna Elisa Verzì
  • Maria Rita Nasca
  • Giuseppe Micali


Congenital triangular alopecia is a circumscribed form of non-scarring alopecia of unclear etiology that is usually noticed in children between 2 and 4 years of age. It generally involves unilaterally or, less frequently, bilaterally the frontotemporal temporal region of the scalp. Dermatoscopy enhances the visualization of a carpet of short vellus hairs within the patch as well as normal follicular openings with no evidence of scarring alopecia, allowing the differential diagnosis with other forms of hair loss.


Congenital triangular alopecia Temporal triangular alopecia Vellus hairs 


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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  • Francesco Lacarrubba
    • 1
  • Anna Elisa Verzì
    • 1
  • Maria Rita Nasca
    • 1
  • Giuseppe Micali
    • 1
  1. 1.Dermatology ClinicUniversity of CataniaCataniaItaly

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