PMC5099274_01
Coronal section of CT thorax showing a large bulla involving the right upper lobe and corresponding compression atelectasis of the right lung tissue.
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CT angiogram done was negative for pulmonary embolism, but confirmed a large bulla involving the right upper lobe and corresponding compression atelectasis of the right lung tissue without evidence of pneumothorax and normal left lung [Fig. 1, Fig. 2].