Angiomatous Nasal Polyp Diagnosed by Preoperative Imaging and Successfully Resected by Endonasal Endoscopic Surgery: A Case Report. - Iemura-Kashiwagi M; Kikuchi M; Koyasu S; Kitada Y; Sugimoto A; Haga H; Nakamoto Y; Nakagawa T; Omori K (Cureus, 2021)