Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The patient is status post median sternotomy , CABG , and cardiac valve replacement . Medial left apical mass and multiple pulmonary nodules , better seen and evaluated on CT . There is mild - to - moderate interstitial edema . No focal consolidation or pleural effusion is seen . There is no evidence of pneumothorax . The cardiac and mediastinal silhouettes are stable . Old - appearing posterior left seventh rib fracture again seen .
    OUTPUT:
    
Mild pulmonary edema .