Figure 2.

A patient with non-tuberculous mycobacteria (NTM) lung disease due to Mycobacterium avium complex who underwent a right middle lobectomy but many years later, developed recurrence due to Mycobacterium simiae. Pre-operative axial and sagittal CT images from 2006 demonstrated right middle lobe (RML) bronchiectasis and near-complete atelectasis (arrows). Patient underwent right middle lobectomy in 2010 and post-operative images showed minimal abnormality in the lung tissue previously occupied by the RML. In 2016, there was recurrence of NTM lung disease due to M. simiae with CT scan showing bronchiectasis and nodularity in the anterior right upper lobe (arrows and arrowheads in the axial and sagittal images, respectively), which now occupied the site of the resected RML.