Posted in Web Variant PADI3 in Central Centrifugal Cicatricial Alopecia … February 4, 2020 Central centrifugal cicatricial alopecia (CCCA) is the most common type of primary scarring alopecia affecting women of African ancestry. 1,2 It is often but not exclusively triggered by hair … https://www.nejm.org/doi/full/10.1056/NEJMoa1816614