45 year old women: -Chronic fatigue -44 lb weight loss over last month -Tingling in her feet Upper endoscopy shows 1 x 1.5 ulcer(neoplastic appearing) in the distal lesser curvature of stomach. She has a her stomach resected. What is most likely association with this patients condition?

The gastrointestinal tract (GIT) is the system of organs that allows for the consumption and digestion of food, absorption of nutrients, and excretion of waste in the form of fecal matter.