Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes are again noted and there is left basilar atelectasis . Interval resolution of previously seen pleural effusions . There is a right basilar opacity silhouetting the right cardiac margin which on the lateral seen anteriorly in could be due to mediastinal fat . The lungs are otherwise clear . Median sternotomy wires and mediastinal clips are noted . Cardiac silhouette is within normal limits . No acute osseous abnormalities .
    OUTPUT:
    
Interval resolution of prior pleural effusions . Right basilar opacity could be due to prominent mediastinal fat given configuration on the lateral View though infection is difficult to entirely exclude .