DUODENAL PSEUDOPOLYP—THE FLEXURE FALLACY

Duodenal Obstruction Caused by Volvulus of the Duodenal Sigmoid Flexure in Dairy Cattle

Duodenal obstructions are uncommon in cattle. Recently, a new condition clinically resembling abomasal volvulus (AV) but affecting the duodenal sigmoid flexure (SF) has been recognized in dairy cattle. The purpose of this retrospective study was to characterize this condition and determine the prognosis of cattle undergoing surgery. We hypothesized that values obtained from bloodwork would be o...

The “banzhaf Fallacy” Fallacy

Primary splenic flexure volvulus

Primary splenic flexure volvulus is a rare entity. We report an acute presentation of primary splenic flexure volvulus with gangrene in a 24-year-old man. Radiograph showed a massively-dilated large bowel loop with a coffee-bean sign. At emergency laparotomy, a distended and gangrenous splenic flexure was found, with absence of all three ligamentous attachments of the splenic flexure.

Flexure of cranial sutures.

Beam samples containing cranial sutures were prepared from embalmed and unembalmed cranial bone and were tested to determine their flexural stiffness and strength. With the aid of layered beam theory, the flexural stiffnesses of beams containing cranial sutures were compared to hypothetical layered cranial bone beams which did not contain sutures. The bending stiffnesses and strengths of crania...

Splenic flexure volvulus.

Splenic flexure volvulus is rare, only 22 cases having been reported. Though these usually present with chronic intermittent clinical features we recently encountered a case presenting as acute intestinal obstruction which, on plain abdominal X-rays, had classical features of this condition.