Imaging Diagnosis of Interstitial Pneumonia with Emphysema (Combined Pulmonary Fibrosis and Emphysema)
Figure 4
Emphysema with fibrosis, thick-walled large cyst. (a) HRCT of upper lungs shows severe centrilobular emphysema. A relatively thick-walled cyst in the superior basal segment of the left lower lobe. Lung cancer is noted in the lingual division of the left upper lobe. (b) HRCT of left lower lung shows large thick-walled cysts surrounded by ground glass opacity in the regions apart form pleural surface. (c) HRCT of left lower lobe shows multiple bizarre-shaped cysts aggregated in the central portion of the left lower lobe. (d) Pathologic specimens of the resected left upper lobe shows centrilobular cystic lesion involving the membranous and respiratory bronchioles with fibrosis. Note peripheral lung parenchyma spared. (e) Mucus filling in the alveoli with slight septal thickening adjacent to the cyst (circle of Figure 5(e)). Mucus filling and septal thickening correspond to ground glass opacity surrounding large cysts.
