Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest show increased size of a small right pleural effusion from ___ which silhouettes the right hemidiaphragm and right heart border . The left lung is clear with minimal atelectasis at the lung base . No pneumothorax , pulmonary vascular congestion , or pulmonary edema is present . The cardiac silhouette is enlarged but probably unchanged . The mediastinal and hilar contours are unchanged . The thoracic aorta is unfolded with partial calcification of the aortic knob .
    OUTPUT:
    
Findings consistent with chronic heart failure . No evidence of acute exacerbation . Findings were communicated by Dr . ___ to the nurse ___ Dr . ___ by phone at 15 :35 p .m . on ___ .