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Endoscopic patterns of ICIs colitis. In panel A, Crohn’s like pattern is observed, characterized by oedematous, hyperaemic mucosa with extensive ulcerations, some with a fibrinous base, and pseudo-polyps. In panel B, there is a UC like pattern; the mucosa appears hyperaemic in places with isolated erosions, it is edematous, with disappearance of the submucosal vascular pattern.
