Alopecia Areata (AA)
A common non-scarring alopecia. Although the exact pathophysiology of AA is not clear, it has been determined that it is a T-lymphocyte mediated autoimmune condition that occurs in genetically susceptible individuals. It typically presents itself with sharply demarcated coin-sized patches of alopecia. The scalp is the most commonly affected area, but any hair-bearing area can be involved. Spontaneous remissions and reoccurrences are common. Available treatment options are neither curative nor preventative.