A 32yo female with no known past medical history or hospitalization, presented to the emergency department with a three day history of colicky abdominal pain, abdominal distension, nausea and no passage of stools, her abdomen was generally distended, tympanic to percussion with no shifting dullness sign, the bowel sounds were markedly reduced, no discrete masses were palpable and digital rectal examination revealed an empty rectum; her radiograph demonstrates a greatly dilated sigmoid, note the 'coffee bean sign' a.k.a. 'bent inner tube sign', the remainder of the large bowel is not dilated, presumably because the proximal point of the twist is not causing obstruction and thus allows drainage into the sigmoid.















