January 2023 in “Indian dermatology online journal” Skin problems after waxing led to a sarcoidosis diagnosis.
June 2025 in “American Journal of Dermatopathology” Granulomatous Alopecia Areata is rare and may be caused by hair antigens or follicle destruction.
5 citations
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October 2016 in “Anais Brasileiros de Dermatologia” A man from Brazil had a rare case of leprosy on his scalp, which improved with treatment.
10 citations
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January 2014 in “International Journal of Trichology” Sarcoidosis can cause scarring hair loss on the scalp, which is rare.
October 2015 in “The American Journal of Gastroenterology” Allopurinol may cause rare granulomatous microscopic colitis.