Fig. 2From: Primary pancreatic-type acinar cell carcinoma of the jejunum with tumor thrombus extending into the mesenteric venous system: a case report and literature reviewEndoscopic examination: a. Double-balloon enteroscopy reveals a centrally ulcerated submucosal jejunal lesion measuring approximately 3 cm; b. Endoscopic ultrasonography shows a submucosal tumor touching the uncinate process of the pancreas, suggesting the possibility of pancreatic infiltration (arrow, pancreas)Back to article page