Hello! Thanks for putting your query in HCM. I am a Gastroenterologist (DM).
She requires endoscopy
examination and biopsy
of gastric wall to confirm the cause of thickened walls because it is necessary to rule out any malignancy at this age and may be duodenal biopsy to see for the cause of chronic diarrhoea
She also reuires investigations for chronic diarrhoea. So I will advise to seek the opinion of Gastroenterologist.
I hope I have answered your query and this will help you. Remain in touch.