Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal consolidation . There is cardiomegaly and mild pulmonary edema . There is likely a small left pleural effusion . No pneumothorax is identified . Degenerative changes are noted at the bilateral AC and glenohumeral joints .
    OUTPUT:
    
Mild cardiomegaly and trace pulmonary edema . Small left pleural effusion .