Figure 1. A 52-year-old female with Mycobacterium simiae lung disease. (A) A plain chest radiograph shows nodular and micronodular opacities distributed in bilateral middle lung zones. (B) An axial high-resolution computed tomography (HRCT) image shows multiple nodules or nodular consolidation in the lingular division of the left upper lobe and the superior segment of left lower lobe (arrowheads). (C) An axial HRCT image shows tubular bronchiectasis (arrows) in the right middle lobe and the lingular division of left upper lobe. Thus, the radiologic finding of this patient was the typical nodular bronchiectatic pattern of nontuberculous mycobacterial disease.