<prompt> True about gastric stump carcinomaEnterogastric reflex is the causePrognosis good after surgeryIt is always adenocarcinoma in natureDiffuse type is only variety  <response>: Usually, after Billroth II operation altered acid level, enterogatric bile reflux is the pathogenesis which increases the peptic activity causing mucosal metaplasia and dysplasia resulting in stump carcinoma Reference SRB edition:5 page:845 