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Figure 9. Lymphocytic interstitial pneumonitis. 33-year-old male with increasing breathlessness 3 months following stem cell transplantation. (a) Chest radiograph demonstrates bilateral mid and lower zone pulmonary nodules measuring 15 mm in the absence of clinical infection. (b) High resolution CT through the lower lobes demonstrates widespread nodules throughout the lungs and patchy ground glass opacification. (Images courtesy of Dr J Reynolds. Consultant Radiologist at Heartlands and Solihul Hospital, Birmingham.)