This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Stomach & Duodenum, Subject name: Surgery
[{'content': 'The following are true regarding primary gastric lymphoma except: \nSelect and explain. \nA. B symptoms are very rare., B. H. pylori is implicated especially in MALT type, C. Mostly of B cell origin, D. Clinically can be easily differentiated from gastric adenocarcinoma by the presence of early satiety and prominent lymph node metastases.', 'role': 'user'}, {'content': 'Answer: D \nExplanation: GASTRIC LYMPHOMA Stomach is MC site for lymphoma in the GIT MC gastric lymphoma is diffuse large B-cell lymphoma (55%) >extranodal marginal cell lymphoma (MALT) (40%) > Burkitts lymphoma (3%) > mantle cell and follicular lymphomas. Clinical Features: Vague symptoms, namely epigastric painQ, early satiety, and fatigue. B symptoms are very rare. Diagnosis: Endoscopy: Nonspecific gastritis or gastric ulcerations, with mass lesions being unusual.', 'role': 'assistant'}]