What is the normal rectosigmoid ratio?
Rectosigmoid index is obtained by dividing the widest diameter of the rectum by the widest diameter of the sigmoid loop when the colon is fully distended by the contrast medium 5 , 16 . The normal rectosigmoid index is ≥1.
What is the rectosigmoid region?
The rectosigmoid region denotes the last part of the sigmoid colon and the beginning of the rectum. The sigmoid colon is completely invested by the peritoneum. The upper third of the rectum is invested by the peritoneum anteriorly and laterally, whereas the lower third of the rectum is extraperitoneal.
Where is the rectosigmoid junction?
The rectosigmoid junction (RSJ) is the limit between the sigmoid colon and the rectum. The limits of this transition zone have been a source of controversy.
How accurate is a barium enema?
It is believed to be almost as accurate as colonoscopy in detecting cancer and polyps greater than 5 mm in size. It is less “invasive” than colonoscopy. (It involves infusing air into the colon via the rectum but without the need for insertion of a long tube into the colon as with colonoscopy.)
Is rectosigmoid retroperitoneal?
Rectosigmoid colon, starting from the descending colon to the anus, having the peritoneal and retroperitoneal parts, is provided through the superior mesenteric artery and the inferior mesenteric artery.
What is rectosigmoid perforation?
Perforation of rectum or sigmoid is not an uncommon entity. It can occur in any age group. Rectosigmoid colon is characterized by inadequate blood supply and high pressure due to less caliber which is the rationale behind perforation of the distal part of the colon [3].
What does rectosigmoid junction mean?
Aim: The rectosigmoid junction is the limit separating the sigmoid colon and rectum. The disappearance of taenia coli (belonging to the colon) and the peritoneal reflection (recto-genital pouch), located below the upper rectum, seem the most reliable.
What spinal level is the rectosigmoid junction?
The adult human rectum is about 12 centimetres (4.7 in) long, and begins at the rectosigmoid junction, the end of the sigmoid colon, at the level of the third sacral vertebra or the sacral promontory depending upon what definition is used.
Is Hirschsprung’s disease fatal?
Hirschsprung’s disease is a rare condition that causes bowel obstruction, can be fatal if left untreated and leaves 30 percent of those treated with complications.