Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patchy right base opacity could be due to overlap of structures versus small consolidation . No pleural effusion is seen . There is no pneumothorax . The cardiac silhouette is enlarged , with apparent enlargement of the left atrium . No overt pulmonary edema is seen . Mediastinal contours unremarkable .
    OUTPUT:
    
Enlarged cardiac silhouette . No overt pulmonary edema is seen . Patchy right base opacity could relate to overlap of structures although consolidation due to pneumonia is not excluded in the appropriate clinical setting .