<prompt> All statements about adult instussusception are true except:Idiopathic more enteric rather than colonicLead point present in majority of casesResection of bowel is adequate for large bowel intussusceptionHydrostatic reduction with barium or air are done if bowel is not completely obstructed  <response>: Ans: A Idiopathic more enteric rather than colonic Ref: LB 26thl 184-85,187 25th79-81; Sabiston 18th 2063-64Most intussusceptions can be reducednon-operatively using an air or barium enema- L B 25th 81Adult cases of intussusceptions are invariably associated with a lead point, which is usually a polypfe.g, Peutz-Jeghers syndrome, a submucosal lipoma or other tumor- L B 25th l191In adults, colocolic intussusceptions is common but in children ileocolic is commonest variety 77v- L B 25th1191Intussususception The incidence of a pathological lead point is upto 12 in most pediatric series increases directly with age Causes:Change in diet during weaning, Upper respiratory tract infection, viral infection, Intestinal polyp, Submucous lipoma, Leiomyoma of intestine, Meckels diverticulum,Carcinoma, Purpuric submuscosal haemorrhagesAdministration of rotavirus vaccinei can cause intussusceptions- Sabiston 18th2063 Currant jelly stool is foundTarget sign pseudokidney sign5 are found- Sabiston 18th 2064 Treatment: Non-operative: reduction by hydrostatic pressure using either saline or barium sulphate solution or air: Surgery indications:- More than 48 hrs duration- Features of perforation, strangulation, peritonitis- Recurrent intussusceptions- In adults, commonly resection is required. 