Teenager with intractable back pain Pediatric Imaging Gastrointestinal October 25, 2021October 7, 2021 Transverse US of the abdomen shows a large solid mass in the pancreatic head encasing the hypoechoic portal-mesentero venous junction in the center of the image. The diagnosis was pancreatoblastoma. Related Published October 25, 2021October 7, 2021