Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no focal consolidation , pleural effusion , pulmonary edema , or pneumothorax . The cardiomediastinal silhouette is unchanged , including mild cardiomegaly and a tortuous descending aorta . A single chamber pacemaker , prosthetic valve , sternotomy wires , and mediastinal clips project in unchanged location .
    OUTPUT:
    
No evidence of acute cardiopulmonary process .