Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No change in the position of the subcutaneous ICD . Similar appearance of the lungs to ___ . Pulmonary vascular congestion is mild , unchanged . No pleural effusion or pneumothorax . The cardiac silhouette remains enlarged , similar the prior exam which could be cardiomegaly and / or pericardial effusion . Aortic knob calcifications are mild . Dextroconvex curvature of the thoracic spine is mild . No evidence of an acute fracture . The mediastinum is not widened .
    OUTPUT:
    
No radiographic evidence of pneumonia .