What is tapering of rectal contrast called, when it reached the point of obstruction?
Bird's beak sign
Topogram shows a grossly dilated large bowel with lack of haustrations. Coffee bean sign is seen. The dilated colon points towards the pelvis.
Grossly dilated sigmoid colon with multiple air-fluid levels forming a closed loop associated with swirling of mesentery at transition point seen.
Tapering obstruction at the rectosigmoid junction obstructing proximal passage of rectal contrast medium.
Other findings: Mild ascites, small left inguinal hernia and right inguinal hernia containing bladder bilaterally and loculated fluid on the left. Bilateral renal cortical cysts, and prostatomegaly.