Alopecia Areata (AA) is characterized by patchy, nonscarring, autoimmune-mediated hair loss, although many aspects of AA pathogenesis are unknown (Gilhar et al., 2012). The scalp is most commonly involved in clinically treated AA, but any hair-bearing surface of the body may be affected (Wasserman et al., 2007). Males and females of any age and hair color can have AA (Finner, 2011; Kyriakis et ...