Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is markedly enlarged but unchanged . The mediastinal and hilar contours are also stable . There is no pulmonary vascular congestion , definite focal consolidation , or pleural effusion . The study is somewhat limited due to underpenetration . No pneumothorax is seen . There are no acute osseous abnormalities .
    OUTPUT:
    
Unchanged cardiomegaly without evidence of congestive heart failure or pneumonia .