Pathology of Gastrointestinal System

Mouth

- Normal -
Normal

- Inflammatory Diseases -
Pyostomatitis Vegetans

- Malignant Neoplasms -
Squamous Carcinoma

Salivary Glands

- Normal -
Normal Parotid Gland
Normal Sublingual Gland
Normal Submaxillary Gland

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Diseases -
Sjogrens Disease

- Growth Alteration (non-neoplastic)

Lymphoid Hyperplasia

- Benign Neoplasms -
Pleomorphic Adenoma

Esophagus

- Normal -
Normal

- Inflammatory Diseases -
Candida
Erosion
Esophagitis
Reflux
Ulcer

- Necrosis & Degeneration -
Erosion

- Diseases of the Vasculature -
Varices

- Growth Alterations (non-neoplastic) -
Barretts

- Malignant Neoplasms -
Adenocarcinoma
Squamous Carcinoma In Situ
Squamous Carcinoma in situ
Squamous Cell Carcinoma

- Mechanical Diseases & Trauma -
Stricture

Stomach

- Normal -
Normal
Normal Pylorus

- Congenital Abnormalites -
Abdominal Wall Defect

- Inflammatory Diseases -
Candida
Helicobacter
Ulcer

- Diseases of the Vasculature -
Hemorrhage

- Growth Alterations (non-neoplastic) -
Metaplasia
Polyp

- Malignant Neoplasms -
Adenocarcinoma
Stromal Tumor

Small Intestine

- Normal -
Normal Duodenum
Normal Ileum
Normal Jejunum

- Congenital Abnormalites -
Atresia

- Inflammatory Diseases -
Crohns
Cytomegalovirus
Gluten Sensitive Enteropathy
Mycobacterium
Subtotal Villous Atrophy
Total Villous Atrophy

- Necrosis & Degeneration -
Infarct
Ulcer

- Diseases of the Vasculature -
Hemorrhage
Infarct

- Benign Neoplasms -
Adenoma

- Malignant Neoplasms -
Adenocarcinoma
Carcinoid
Gastrointestinal Stromal Tumor
Metastatic Adenocarcinoma
Myeloma

- Mechanical Diseases & Trauma -
Perforation

- Trauma -
Gunshot

Appendix

- Inflammatory Diseases -
Appendicitis
Fibrosis
Peritonitis

- Malignant Neoplasms -
Carcinoid
Cystadenocarcinoma

Colon

- Normal -
Normal

- Inflammatory Diseases -
Acute Colitis
Ascaris
Collagenous Colitis
Crohns
Cryptosporidiosis
Diverticulitis
Pseudomembranous Colitis
Ulcerative Colitis

- Necrosis & Degeneration -
Infarct
Ischemic Colitis
Toxic Megacolon

- Growth Alterations (non-neoplastic) -
Dysplasia
Repair

- Benign Neoplasms -
Adenoma
Adenoma, Tubulovillous
Adenoma, Villous
Polyposis

- Malignant Neoplasms -
Adenocarcinoma
Carcinoid
Leiomyosarcoma
Squamous Carcinoma

- Mechanical Diseases & Trauma -
Diverticulosis
Pneumatosis

Liver

- Normal -
Normal

- Inflammatory Diseases -
Abscess
Cirrhosis
Hemochromatosis
Herpes
Necrosis

- Necrosis & Degeneration -
Fatty Change
Hemochromatosis
Infarct
Necrosis

- Diseases of the Vasculature -
Chronic Passive Congestion
Hematoma
Thrombus

- Growth Alterations (non-neoplastic) -
Focal Nodular Hyperplasia

- Benign Neoplasms -
Adenoma

- Malignant Neoplasms -
Hepatocellular Carcinoma
Lymphoma
Metastatic Adenocarcinoma
Metastatic Esophageal Carcinoma
Metastatic Small Cell Carcinoma

- Mechanical Diseases & Trauma -
Cyst

- Trauma -
Bullet

Gall Bladder

- Inflammatory Diseases -
Cholecystitis, Acute
Cholecystitis, Chronic
Cholelithiasis

- Necrosis & Degeneration -
Cholesterolosis

- Malignant Neoplasms -
Adenocarcinoma
Papillary Adenocarcinoma

- Mechanical Diseases & Trauma -
Cholelithiasis

Pancreas

- Normal -
Normal

- Inflammatory Diseases -
Pancreatitis Acute Hemorrhagic

- Benign Neoplasms -
Adenoma, Papillary

- Malignant Neoplasms -
Adenocarcinoma

- Mechanical Diseases & Trauma -
Pseudocyst

- Congenital Abnormalites -
Omphalocoele