Newly developed self-expandable Niti-S MD colonic metal stent for malignant colonic obstruction

Figure 4 Palliative care using the newly developed Niti-S MD type colonic stent. A and C: The patient was a 65-year-old man who presented with obstructive lesion (arrowhead) in the rectum (Rb); B and D: The patient had rectal stenosis caused by peritoneal dissemination of gastric cancer. Using a smaller caliber colonoscope, we placed a 22 mm×8 cm stent (arrow) while paying attention not to cover the stent on the pectinate line; E: On the second day, the stent was fully expanded, decompressing the acute obstruction.