Noncalcified Gallstone Ileus in Computed Tomography (CT) Abdomen and Pelvis With Contrast.

Gallstone ileus is a rare but serious complication of chronic cholecystitis, causing mechanical small bowel obstruction. Contrast-enhanced computed tomography (CT) plays a key role in radiological diagnosis. The classic findings are known as Rigler's triad, comprised of pneumobilia, small bowel obstruction, and calcified gallstones.

Incidental non-complicated posterior rectus sheath hernia.

Posterior rectus sheath hernia is a truly rare finding, with only 11 documented cases since the first report in 1937. A posterior rectus sheath hernia is herniation of bowel and/or omentum through the posterior portion of the rectus sheath, but not through any other structure. This can only occur medial to the spigelian fascia, differentiating it from a spigelian hernia.