TLDR A 23-year-old man has a benign, non-progressive hair loss patch that doesn't respond to treatment but can be cosmetically treated.
A 23-year-old man presented with a 3 cm × 2 cm patch of hair loss on the left temporal scalp, persisting for 10 years without progression or regrowth. Dermoscopy showed vellus hair and empty follicles, confirming a diagnosis of temporal triangular alopecia (TTA), a benign, non-scarring, non-progressive condition. TTA typically appears in the frontotemporal region and can be congenital or develop in early childhood or adulthood. It is important to correctly diagnose TTA to avoid unnecessary treatments, as it remains unchanged throughout life. Cosmetic options include follicular unit transplantation or surgical excision for smaller lesions.
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.
22 citations,
January 2017 in “Indian Dermatology Online Journal” Body hair transplants can treat baldness but differ from scalp hair and need more research on long-term results and side effects.
6 citations,
December 2014 in “Clinical and Experimental Dermatology” Hair density and thickness decrease in all scalp areas for East Asians with AGA.
24 citations,
September 2012 in “Dermatologic Surgery” The conclusion is that normal scalp hair counts for Taiwanese people were established, showing age-related differences but not sex or scalp location differences.
22 citations,
May 2002 in “Skin Research and Technology” CE-PTG detects early hair follicle issues in balding areas, helping measure male hair loss.
