1 MCQs in Medicine for NEET PG
A 45-year-old man underwent allogeneic HSCT for acute myeloid leukemia 18 months ago. He now presents with progressive dyspnea on exertion and dry cough. Pulmonary function testing shows FEV1/FVC ratio of 0.68, FEV1 at 68% predicted (decline of 12% from pretransplant baseline), and RV/TLC ratio of 125%. Expiratory HRCT demonstrates mosaic attenuation with air trapping in small airways. Microbiologic workup including BAL is negative for infection. The condition marked **B** in the diagram is suspected. Which of the following best describes the pathophysiologic mechanism underlying this pulmonary complication?
Ready to test yourself?
Test your Medicine knowledge with AI-powered MCQs and detailed explanations — no signup required to try.
Sign up free and practice all 1 Bronchiolitis Obliterans Post-HSCT MCQs with AI-powered explanations tailored to your performance.
Create Free Account