Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Pacemaker leads appear unchanged in position terminating in the region of the right atrium and right ventricle . Cardiomegaly is grossly unchanged though difficult to fully assess . Lung volumes are low though no focal consolidation , large effusion or pneumothorax is seen . No convincing signs of edema . Bony structures are intact .
    OUTPUT:
    
Cardiomegaly without convincing signs of pneumonia or edema .