Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable frontal radiograph of the chest demonstrates right basilar atelectasis with small right pleural effusion and no pneumothorax . At the right lower lateral aspect of the thoracic cage , there is a subtle change in contour of the rib , possibly indicating the reported rib fracture , although oblique views are recommended for further characterization if rib fractures , if clinically indicated . Cardiomediastinal contours are unchanged .
    OUTPUT:
    
Small right pleural effusion with adjacent atelectasis and no pneumothorax .