Recurrent erythrodermic psoriasis and polycythemia successfully treated with brodalumab. Issue 6 (8th October 2020) - Bernardini, Nicoletta; Skroza, Nevena; Tolino, Ersilia; Mambrin, Alessandra; Balduzzi, Veronica; Marchesiello, Anna; Michelini, Simone; Volpe, Salvatore; Maddalena, Patrizia; Proietti, Ilaria; Potenza, Concetta