TLDR Triangular temporal alopecia is a benign hair loss pattern best diagnosed with dermoscopy, with limited treatment options like surgery and hair transplantation.
Triangular temporal alopecia (TTA), also known as congenital triangular alopecia or Brauer nevus, is a benign, non-scarring hair loss pattern typically located in the temporal region and often unilateral. It can appear in childhood or adulthood and may be triangular, oval, or lancet-shaped. Histopathology shows preserved follicles with mostly vellus hair, while dermoscopy reveals vellus hairs in the affected area surrounded by normal terminal hairs. With around 130 cases reported in the literature, dermoscopy has been highlighted as a crucial diagnostic tool. Treatment options are limited, but surgical excision and hair transplantation have provided better aesthetic outcomes.
290 citations,
December 2017 in “Journal of The American Academy of Dermatology” Alopecia areata is an autoimmune condition causing hair loss, influenced by genetics, stress, and diet, and may be prevented by a high soy oil diet.
32 citations,
August 2016 in “Journal of the American Academy of Dermatology” Temporal triangular alopecia is a non-scarring hair loss in children, often linked to other health conditions.
24 citations,
September 2014 in “Journal of the European Academy of Dermatology and Venereology” Trichoscopy is reliable for diagnosing Temporal Triangular Alopecia and can prevent unnecessary biopsies and wrong treatments.
20 citations,
January 2013 in “Annals of Dermatology” Topical minoxidil successfully treated temporal triangular alopecia.
12 citations,
June 2012 in “Dermatologic Surgery” Hair transplantation effectively treated a woman's patchy hair loss when other treatments failed.
35 citations,
September 2011 in “The Journal of Dermatology” Trichoscopy helps accurately diagnose temporal triangular alopecia.
56 citations,
March 2010 in “Journal of Dermatology” Most cases of Temporal Triangular Alopecia are found in early childhood and may be related to genetic conditions.
34 citations,
December 1995 in “Pediatric Dermatology” Congenital Triangular Alopecia is a rare, non-scarring hair loss that can be surgically treated in females for cosmetic reasons.
7 citations,
November 2000 in “Clinics in Dermatology” Most hair loss in children is caused by a few common conditions and is easy to diagnose, but rare types require careful evaluation.
4 citations,
May 2015 in “Indian Journal of Dermatology, Venereology and Leprology” Congenital triangular alopecia can occur outside the typical fronto-temporal region.
56 citations,
March 2010 in “Journal of Dermatology” Most cases of Temporal Triangular Alopecia are found in early childhood and may be related to genetic conditions.
January 2023 in “Indian Dermatology Online Journal” A 23-year-old man has a benign, non-progressive hair loss patch that doesn't respond to treatment but can be cosmetically treated.
