Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right pigtail catheter projects just medial to the right chest wall . There may be a tiny residual right apical pneumothorax . Right basilar opacity is likely atelectasis . Left lung remains clear and the cardiomediastinal silhouette is stable . No acute osseous abnormalities .
    OUTPUT:
    
Right - sided pigtail catheter projects just medial to the right chest wall . Tiny residual right apical pneumothorax .