Most oesophageal and gastric cancers arise from adenomas?
Y/N
no most of these cancers arise from the flat pathways
metaplasia> low grade dysplasia/ high grade dysplasia > adenocarcinoma
coeliac disease with a high gluten diet would cause what histological change in duodenum?
villous atrophy
increased intraepithelial lymphocytes
what does not cause chronic gastritis?
autoimmunity
infection
drugs
metabolic causes
A: metabolic causes
drugs: NSAIDS
autoimmunity : anti parietal
bacterial: h pylori
chemicals: NSAIDS, bile