True about gastric lymphoma -a) Non Hodgkins lymphoma commonest varietyb) Diagnosis is made by biopsyc) Chemoresistantd) Essentially B-cell typee) H-Pylori has direct relationship
The question asks which statements are true about gastric lymphoma. The options are a) Non-Hodgkin's lymphoma is the commonest variety, b) Diagnosis is made by biopsy, c) Chemoresistant, d) Essentially B-cell type, e) H-Pylori has direct relationship. The correct answer is likely A, B, D, E because I remember that most gastric lymphomas are B-cell, and H. pylori is a major cause. Diagnosis is definitely via biopsy. Non-Hodgkin's is the common type. But let me confirm.
Core Concept: Gastric lymphoma is primarily a B-cell lymphoma, often associated with H. pylori. Diagnosis requires biopsy, and treatment may involve eradicating the bacteria. Now, why each option is correct or not.
Option a: Non-Hodgkin's lymphoma is the commonest. Yes, because the majority of gastric lymphomas are NHL, specifically MALT lymphoma. So correct.
Option b: Biopsy for diagnosis. Correct, as endoscopic biopsy is standard.
Option c: Chemoresistant. Wait, H. pylori-associated lymphomas can sometimes regress with antibiotic treatment, so they might be chemosensitive. So this is incorrect.
Option d: B-cell type. Correct, as most are B-cell origin.
Option e: H. pylori direct relationship. Yes, H. pylori infection is a major etiological factor, especially in MALT lymphoma. So correct.
So the correct options are a, b, d, e. But the user's correct answer is labeled as A, B, D, E. Wait, the options in the question are a to e, but in the answer, the user lists options as A. B. C. D. So perhaps the original question's options are labeled A to E, but in the given question, the options are a) to e). The user's correct answer is probably A, B, D, E. But the user's correct answer is written as [Letter]. [Answer Text], so maybe the correct answer is A, B, D, E. However, the user's correct answer is not specified here. Wait, the user's correct answer is given as "A. B. C. D." but that's probably a mistake. Wait, the user's input says the correct answer is A, B, D, E. Let me check again.
The user's input says the correct answer is:
**Correct Answer:** .
But the options are a) to e). The user's correct answer is likely A, B, D, E. But the options are labeled as a), b), etc., not A, B. Wait, confusion here. The original question's options are labeled a) to e), but the user's answer options are labeled A. B. C. D. So perhaps the correct answer is A, B, D, E. But the user's correct answer is written as [Letter]. [Answer Text], so maybe the correct answer is A, B, D, E. But in the given question, the options are a) to e). So the user might have a formatting error.