Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No focal opacity to suggest pneumonia is seen . No pleural effusion , pulmonary edema or pneumothorax is present . There is slight eventration of the right hemidiaphragm . The cardiomediastinal silhouette is unchanged . A dual - lead left - sided pacemaker and median sternotomy wires appear unchanged .
    OUTPUT:
    
No acute intrathoracic process .