Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral chest radiographs demonstrate indistinctness of the pulmonary vasculature , and interstitial thickening consistent with mild volume overload . There is mild bilateral blunting of costophrenic angles consistent with small bilateral pleural effusions . The cardiac silhouette and main pulmonary artery segment are markedly enlarged . There is atherosclerotic calcification of the aortic arch . A right hemodialysis catheter is in place , the tip of which projects over the right atrium . A left chest AICD is in place with appropriate positioning of the atrial and ventricular leads . There is no pneumothorax . Retrocardiac opacity projects within the left lower lobe .
    OUTPUT:
    
1 . Airspace opacity in the left lower lobe , consistent with pneumonia in the appropriate clinical setting . 2 . Enlargement of the main pulmonary artery , consistent with diagnosis of pulmonary hypertension . 3 . Cardiomegaly and interstitial edema consistent with mild congestive heart failure .