A RARE CASE OF RETROGRADE INTUSSUSCEPTION

A 60 years old male was admitted in emergency ward with abdominal pain, bleeding per rectum vomiting. On examination, he had a vague tender mass over the left lumbar region. Per rectal examination showed blood stained fecal matter. X ray abdomen showed features of intestinal obstruction with dilated large bowel loops. Ultrasound of abdomen was done which showed pseudo kidney sign in the left lower abdomen. Also Contrast enhanced CT Abdomen was done and it showed infolding loops of bowel in distal descending colon with target like appearance and dilated proximal colon which was suggestive of Intussception. Laparotomy was planned and the intraop finding was a retrograde intussuception of sigmoid colon into the descending colon. There was no gangrene of the bowel and reduction was not attempted. The involved segment of colon was resected and Hartman's procedure done. Postop period was uneventfull. We report this case, as retrograde intussuception in sigmoid colon is a very rare presentation.