Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a large hiatal hernia with air - fluid levels seen . Left basilar opacity may in part be due to adjacent atelectasis however , there is concern for a small pleural effusion with overlying atelectasis , underlying consolidation not excluded . Right basilar opacity is most likely due to atelectasis . No right pleural effusion is seen . There is no pneumothorax . The aorta is calcified . The cardiac silhouette is difficult to assess due to the large hiatal hernia , but may be mildly enlarged . No overt pulmonary edema is seen .
    OUTPUT:
    
Large hiatal hernia . Left basilar opacity may in part be due to atelectasis adjacent to the hernia however there is concern for left pleural effusion with blunting of the left costophrenic angle and overlying atelectasis with possible left basilar consolidation . Recommend followup to resolution and comparison with any prior studies .