Marked distension of the sigmoid colon with its apex directed to the right upper quadrant of the abdomen under the right diaphragm with smooth tapering and beaking of its ends forming a closed loop and giving the coffee bean appearance.
Bird's beak appearance of the rectum at the site of the sigmoid twist is noted.
Redundant sigmoid colon is also noted.
Medial deviation of the descending colon.
The remainder of the large and small bowel are not dilated.