Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Study is slightly limited by patient rotation . Cardiac silhouette size is mildly enlarged . While the mediastinal and hilar contours appear grossly unremarkable , the previous chest CT did demonstrate prevascular lymphadenopathy . Pulmonary vasculature is not engorged . Patchy opacity is seen within the right lung base corresponding to the area of infarction seen on the prior CT . Linear atelectasis seen within the left lung base . No pleural effusion or pneumothorax is identified . No acute osseous abnormality is visualized .
    OUTPUT:
    
Right basilar patchy opacity corresponding to an area of infarction seen on recent CT .