Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An opacity in the left mid lung zone with associated rib abnormalities and a soft tissue mass is not significantly changed from the prior chest radiograph . This is consistent with the known large chest wall mass , previously characterized on the recent CT . In comparison to prior exam , the lung volumes are lower . There is a new right patchy basilar consolidation . Emphysematous changes are stable . There is no pulmonary edema , pleural effusion , or pneumothorax . The cardiomediastinal silhouette is normal .
    OUTPUT:
    
1 . New patchy opacification at the right base ; possibly due to a new pneumonia . Recommend follow - up radiographs after treatment to ensure resolution . 2 . Stable appearance of the left mid lung zone opacity and chest wall deformity , consistent with the known large chest wall mass .