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Mycobacterium avium complex lung disease in immunocompetent patients: radiography–CT correlation

Department of Medical Imaging, The Toronto General Hospital, Toronto University, 200 Elizabeth Street, Toronto, Ontario, Canada M5G 2C4

View larger version (150K): [in a new window]   Figure 1. 74-year-old female with Mycobacterium avium complex lung disease. Posteroanterior chest radiograph demonstrates overinflated lungs. Ill defined nodular opacities are demonstrated affecting the middle lobe; atelectasis and ill defined nodules affect the lingula. There is blunting of the left costophrenic sulcus indicating a minor amount of pleural disease.

View larger version (58K): [in a new window]   Figure 2. 61-year-old female with Mycobacterium avium complex lung disease. (a) Selected view of lateral chest radiograph demonstrates atelectasis and bronchiectasis (arrows) affecting the lingula and middle lobe. (b)Correlative high resolution CT scan demonstrates atelectasis and bronchiectasis affecting the lingula and middle lobe. Peripheral, ill defined small nodular opacities are noted in the right and left lower lobes (arrows).

View larger version (64K): [in a new window]   Figure 3. 58-year-old male with Mycobacterium avium complex lung disease. (a) Selected view of left upper lobe demonstrates an ill defined round opacity (arrow) with a cavity (curved arrow). (b) High resolution CT image demonstrates a 17 mm diameter thick-walled cavitary region of consolidation affecting the left upper lobe. A nodule affects the right upper lobe posteriorly. Centrilobular emphysema is demonstrated affecting both lungs.