Presentation
?small bowel obstruction
Patient Data





There is a sigmoid volvulus with significant distension of the sigmoid colon measuring up to 10 cm in diameter. The descending and transverse colon are also mildly distended. No intraperitoneal free fluid or gas. 2.7 x 1.9 cm hypodense lesion within the left adrenal gland is in keeping with an adenoma. The remaining solid intra-abdominal organs are unremarkable within the limits of a non-contrast examination. There is minor atelectasis at both lung bases. Degenerative changes of the lower lumbar spine. Otherwise the bones are unremarkable.
Case Discussion
This study demonstrates features of a sigmoid volvulus: dilated loop of sigmoid colon with two crossing transition points with a whirl sign of the sigmoid mesentery.