Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is moderate - to - severe cardiomegaly , but no pulmonary edema and no effusions . Sternotomy wires are intact . There is no evidence of pneumonia . The hila are normal , no pneumothorax .
    OUTPUT:
    
No acute intrathoracic process . Moderate cardiomegaly .