Long-term disease-free survival following preoperative diagnosis and laparoscopic radical resection for Meckel’s diverticulum adenocarcinoma: A case report

Figure 2 Pre-operative double-balloon enteroscopy. A “double lumen” phenomenon is observed 60 cm from the ileocecal valve. One end represents the normal proximal intestinal lumen (position a in the illustration), with no abnormalities noted in the mucosa. The other end corresponds to the proximal blind pouch (position b in the illustration), where a circumferential stricture is present. The enteroscope was able to pass through, and a circumferential ulcer was observed at the edges. After a tissue biopsy was taken, India ink was used for marking.