Gastrointestinal System ( pathology )

Oral cavity: aphthous ulcers, HSV, SCC

Esophagus: reflux esophagitis, Barrett’s, carcinoma

Stomach: gastritis (acute, chronic), ulcers, gastric carcinoma

Small intestine: celiac disease, tropical sprue, Whipple disease

Inflammatory bowel diseases: Crohn’s vs ulcerative colitis

Appendix: acute appendicitis

Large intestine: polyps (adenomatous, hyperplastic), familial adenomatous polyposis, colorectal carcinoma, diverticulosis

Hemorrhoids, angiodysplasia

GI infections: cholera, typhoid, rotavirus

Liver:

• Hepatitis (A–E), autoimmune hepatitis

• Cirrhosis (alcoholic, viral, biliary, hemochromatosis, Wilson)

• Tumors (HCC, cholangiocarcinoma, metastases)

Gallbladder: cholelithiasis, cholecystitis

Pancreas: pancreatitis (acute/chronic), pancreatic carcinoma