Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable AP upright view of the chest was obtained . Heart is normal in size and cardiomediastinal contour is stable . Pericardial calcifications are noted . Lungs are clear . There is no focal consolidation , pleural effusion , or pneumothorax .
    OUTPUT:
    
No acute intrathoracic process .