Endoscopic submucosal dissection of an atypical rectal submucosal lesion: a rare case of a large digestive angiodyplasia of exclusive submucosal presentation - Grimaldi, Jean; Masgnaux, Louis-Jean; Wallenhorst, Timothée; Hervieu, Valérie; Jacques, Jérémie; Rivory, Jérôme; Pioche, Mathieu (Endoscopy, 2023)