Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Slight streaky retrocardiac opacity most compatible with atelectasis . A small 5 - mm opacity in the left lung between the third and fourth anterior ribs appears new from prior radiographs . Another opacity with in the right upper lung , projecting over the second anterior rib may represent an old rib fracture or nodule , and also appears new from the prior exam . No pleural effusion , pulmonary edema , or pneumothorax . The heart size is enlarged , but overall unchanged from ___ . The hila are unremarkable . Median sternotomy wires are again seen and appear intact . Multi - level degenerative changes are noted in the visualized thoracic spine .
    OUTPUT:
    
1 . Cardiomegaly without acute intrathoracic process . 2 . New 5 - mm left lung nodule , amenable to further evaluation with a non-emergent chest CT . At this time , the right lung opacity versus old rib fracture can also be assessed .