Volvulus of sigmoid colon.
A 95-year old woman admitted with acute intestinal obstruction. She
had a distended, tympanitic abdomen and an empty, ballooned rectum. The
X-rays show a massively dilated sigmoid colon. The barium enema shows a
classical cut-off with a beak. The colon decompressed easily with a
sigmoidoscope. However, she had two subsequent admissions with obstruction, and eventually underwent resection of the volvulus.
The operative photograph shows the loop of sigmoid colon. Bands of fibrous tissue can be seen in the mesentery, consequent on recurrent episodes of volvulus.
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