Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is mildly enlarged , new when compared to the prior study . Mediastinal and hilar contours are unremarkable . There is no pulmonary vascular congestion . Trace fluid is seen within the fissures , but no large pleural effusion is noted . There is no pneumothorax . No acute osseous abnormality is seen .
    OUTPUT:
    
Interval development of mild cardiomegaly without pulmonary edema . Trace fluid within the fissures without a large pleural effusion .