Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph was provided . Left CP angle is partially excluded . Right chest wall Port - A - Cath is again seen with catheter tip extending to the region of the cavoatrial junction . The lungs are clear bilaterally . The cardiomediastinal silhouette appears grossly unremarkable . No large effusion or pneumothorax . Bony structures are intact . No free air below the right hemidiaphragm is seen .
    OUTPUT:
    
No acute intrathoracic process .