Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette remains moderately enlarged . The pulmonary vasculature is normal . No focal consolidations concerning for pneumonia are identified . There is no evidence of pulmonary edema . There is no pleural effusion or pneumothorax . Sternotomy wires , mediastinal clips , and an aortic prosthetic valve are in appropriate , and unchanged position .
    OUTPUT:
    
No acute intrathoracic abnormalities identified .