![]() Atypical patterns of loss include a diffuse zig-zag pattern, a pseudo-fringe- sign, or continuous involvement all the way around the hair margin both front and back. What are the clinical features of frontal fibrosing alopecia?įrontal fibrosing alopecia usually presents as a uniform linear band of hair loss along the front and sides of the scalp hair margin, resulting in a receding frontal hair line. Contact allergy or photocontact allergy to cosmetics, moisturising creams, hair dye, and sunscreen have been suggested as possible but unconfirmed causative factors.įrontal fibrosing alopecia has been considered a variant of lichen planopilaris due to the resemblance on histology and an association with various forms of lichen planus, but there are also many differences that raise doubts. An androgen- dependent aetiology has been suggested by the predominance of post-menopausal patients. Pairs of monozygotic twins with frontal fibrosing alopecia and positive family histories reported in some cases suggest a genetic tendency. Genetic, hormonal, autoimmune, inflammatory, and environmental factors have postulated roles in the pathogenesis of frontal fibrosing alopecia. ![]() What is the cause of frontal fibrosing alopecia? The incidence is reported to be increasing worldwide.įrontal fibrosing alopecia is frequently reported in patients with hypothyroidism, contact allergy to fragrances, regular sunscreen use, and autoimmune diseases including lupus erythematosus and rheumatoid arthritis. ![]() Who gets frontal fibrosing alopecia?Īlthough the typical patient with frontal fibrosing alopecia was described as a Caucasian post-menopausal woman over the age of 50, younger women, men, and children, and all ethnic groups including Asians, Hispanics, and those of African descent can be affected. It was first described in a group of Australian women in 1994. Frontal fibrosing alopecia is a patterned form of scarring hair loss along the frontal scalp hair margin. ![]()
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