A Case of Pediatric Pancreatic Insulinoma Diagnosed 4 Years after the Onset

We present a pediatric case of a malignant insulinoma that was preoperatively diagnosed as benign and subsequently treated by minimally invasive surgery. There is no clear treatment strategy for pediatric malignant insulinomas. We suggest that-even if malignant insulinoma has been treated by minimally invasive surgery-follow-up with surveillance imaging is acceptable if curative resection has been achieved; however, further surgical intervention may be warranted in selected cases.