Least common site of volvulus in children
High-Yield Explanation
VolvulusIt's twisting of a segment of the intestine on the axis formed by its mesentery, results in paial or complete bowel obstruction.It's the second most common cause for complete colonic obstruction after Ca colon and most commonly involved site is sigmoid colon> cecal volvulus> transverse colon> splenic flexureOn a plain film, volvulus is seen asInveed U shaped loop / bent inner tube/coffee bean appearanceHaustra is absent. The apex of the loop lies near the left diaphragmGastrograffin enema shows bird of prey sign or bird's beak appearanceManagement includes endoscopic decompression and detorsion, effective sigmoid colectomy is done to prevent recurrence(Refer: Sabiston's Textbook of Surgery, 19th edition, pg no: 1314-1315)