A reformatted coronal CT image demonstrating dilated fluid filled bronchi in the panel on left. The bronchi can be followed centrally. They narrow down and then appear normal. This is well seen in the left upper lobe (arrows). Areas of patchy consolidation are seen bilaterally. A small left pneumothorax is seen which was a complication of the trans-bronchial biopsy. Panel on the right shows a reformatted coronal CT image at the same level six weeks later. The dilated bronchi seen on the earlier scan have markedly improved. This is clearly demonstrated in the left upper lobe (arrows). The areas of consolidation have improved as well. The pneumothorax has now resolved without need for drainage.