Medicine A Bone marrow transplant recipient patient developed chest infection. On HRCT ‘Tree in bud appearance’ is seen. Most likely causative agent is – A Klebsiella B Pneumocystis C TB D RSV 💡 Explanation A Bone marrow transplant recipient patient developed chest infection. On HRCT 'Tree in bud appearance' is seen. Most likely causative agent is - ✓ Correct Answer: B. Pneumocystis