All statements about adult instussusception are true except:

Ans: A (Idiopathic & more enteric rather than colonic) {Ref: L&B 26th/l 184-85,187 & 25th/79-81; Sabiston 18th/ 2063-64]"Most intussusceptions can be reducednon-operatively using an air or barium enema- L & B 25th/ 81'Adult 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/ l191"In adults, colocolic intussusceptions is common but in children ileocolic is commonest variety (77%v"- L & B 25th/1191Intussususception# 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, Meckel's diverticulum,Carcinoma, Purpuric submuscosal haemorrhagesAdministration of rotavirus vaccinei can cause intussusceptions- Sabiston 18th/2063# 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.