Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Three ring - like densities at the cardiac base suggest prior CABG . Median sternotomy wires appear intact . An increase in reticular markings in the right mid and lower lung and less pronounced at the left base is noted . Additionally , the right middle fissure is displaced inferiorly representing volume loss . Increased radiolucency of the right apex suggests possible emphysema and multiple calcified granulomas in the left upper and lower lobes suggest prior granulomatous infection . The cardiomediastinal silhouette and hilar contours are normal . A small right pleural effusion tracks superiorly and into the minor fissure . A healed right clavicular fracture is noted .
    OUTPUT:
    
1 . The reticulated appearance of the interstitium suggests interstitial edema or chronic interstitial lung disease superimposed on a component of chronic emphysema . Recommend comparison to prior radiographs if available to evaluate for chronicity of these changes . 2 . Calcified granulomas suggest prior granulomatous infection ; however , the typical appearance of acute tuberculosis is not demonstrated on this radiograph .