Fig. 1

Clinical course of the patient after the first administration of immune checkpoint inhibitors (ICIs), with endoscopic and histopathological findings. a Clinical course: Patient's clinical timeline following the initial ICI administration, including onset and treatment of immune-related adverse event (irAE) enteritis, temporary remission, and recurrence after subsequent ICI treatment. b Initial irAE enteritis findings: Endoscopic and histopathological images of the small and large intestines during the first episode of irAE enteritis, showing the initial inflammatory response. c Recurrent irAE enteritis findings: Similar endoscopic and histopathological views during the recurrent episode of irAE enteritis