The S-shaped last part of the large intestine, leading into the rectum.
- The hindgut develops into the distal third of the transverse colon, the sigmoid colon, rectum, and upper two thirds of the anal canal.
- The internal iliac arteries supply blood to the sigmoid colon and rectum.
- Stent delivery using fluoroscopic screening alone seems to be adequate for tumours affecting the distal sigmoid colon and rectum.
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