“…Presently, there are only five reported cases of OT PsO treated with a biologic drug and all cases received etanercept therapy (Brokalaki et al, ; Collazo, Gonzalez, & Torres, ; De Simone, Perin, Caldarola, D'Agostino, & Peris, ; Hoover, ; Madankumar, Teperman, & Stein, ). In the above five cases, all subjects responded to the etanercept treatment.…”