Alopecia Areata Mimicking Frontal Fibrosing Alopecia
February 2021
in “
Cureus
”
TLDR A woman's hair loss was initially misdiagnosed as scarring hair loss but was actually a treatable autoimmune hair loss.
The document presents a case of a 59-year-old woman who was initially suspected to have Frontal Fibrosing Alopecia (FFA), a form of scarring alopecia, due to unusual involvement of the frontal hairline. However, dermoscopic findings and response to treatment indicated that she actually had Alopecia Areata (AA), an autoimmune nonscarring alopecia. AA and FFA are both hair follicle disorders leading to hair loss, but they have different clinical patterns and treatments. AA is more common, affecting 0.1% to 0.2% of the population, and can lead to partial or full hair regrowth with treatment. FFA, on the other hand, is typically irreversible. The patient's hair regrowth after treatment with corticosteroids and minoxidil confirmed the diagnosis of AA. This case emphasizes the importance of including AA in the differential diagnosis for FFA and the role of dermoscopy in early recognition and treatment of AA.