Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Severe cardiomegaly is unchanged compared to the prior exam . Aortic knob calcifications are re- demonstrated . The pulmonary vascularity is normal , and the hilar contours are stable . Lungs are clear without focal consolidation . No large pleural effusion or pneumothorax is detected , although a trace right pleural effusion may be present . There are no acute osseous abnormalities .
    OUTPUT:
    
Severe cardiomegaly . Possible trace right pleural effusion .