Stomach Narrowing Differential

Benign

• peptic scarring
• corrosive ingestion
• granulomatous disease (Crohn disease, sarcoidosis, tuberculosis, syphilis, eosinophilic gastroenteritis)

Malignant

• Scirrhous adenocarcinoma
• metastases
• Lymphoma

Stomach Filling Defects Differential

Benign Tumors

• Polyp
• GIST
• Lipoma

Malignant Tumors

• Adenocarcinoma
• Malignant GIST
• Metastases
• Lymphoma

Nonneoplastic

• ectopic pancreatic rest
• Bezoar
• Fundoplication defect
• Varices

Stomach Ulcer Lesions Differential

Nonneoplastic

• Superficial gastric erosion
• peptic or medication-induced ulcers

Tumors

• adenocarcinoma
• Gastrointestinal stromal tumor
• lymphoma
• metastases

Thickened Stomach Folds

Benign

• Gastritis (H pylori)
• Peptic ulcer disease
• Zollinger-Ellison syndrome
• Menetrier disease
• Varcies

Malignant

• Lymphoma
• Carcinoma
• Metastases