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

Figure 1 Pre-operative technetium-99m pertechnetate Meckel scan. After intravenous administration of the radiotracer (⁹⁹mTcO₄^-), dynamic abdominal imaging was performed for 30 minutes, with one frame acquired every 5 minutes, resulting in six frames. A: Immediate gastric visualization is observed (position a in the illustration). A circular lesion with mildly increased tracer uptake is detected in the mid-abdomen (position b); B: Approximately 10 minutes post-injection, the bladder is visualized (position c), while positions a and b remain fixed with progressive accumulation of tracer; C-F: Over time, tracer uptake within the lesion is slightly increased, without notable changes in morphology or location.

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.

Figure 3 Histopathology of specimens obtained during pre-operative double-balloon enteroscopy. A: Ileal adenocarcinoma (hematoxylin and eosin, × 40); B: Ileal adenocarcinoma (hematoxylin and eosin, × 400).

Figure 4 Gross specimen from laparoscopic radical small bowel cancer resection. A: The resected Meckel’s diverticulum measured approximately 5 cm in its short diameter. Indian ink marking is observed at the junction between the diverticulum and the adjacent bowel. The diverticulum is approximately 20 cm from each resection margin; B: The diverticulum measures approximately 5 cm in its long axis.

Figure 5 Histopathology of specimens from laparoscopic radical small bowel cancer resection. A: Ileal ulcerated moderately differentiated adenocarcinoma (hematoxylin and eosin, × 40); B: Ileal ulcerated moderately differentiated adenocarcinoma (hematoxylin and eosin, × 400).