Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear without focal opacity , pulmonary edema , pleural effusion or pneumothorax . The cardiac and mediastinal contours are normal . The right hemidiaphragm is elevated , unchanged since ___ . Two overlapping stents project over the right upper quadrant . There is no free air , pneumatosis or portal venous gas identified . The bowel gas pattern is non-obstructive .
    OUTPUT:
    
No pneumonia or free air . Two overlapping stents project over the right upper quadrant .