Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal upright and lateral chest radiographs demonstrate low lung volumes . Right - sided Port - A - Cath terminates at the cavoatrial junction , unchanged . Thoracic spine fusion hardware is relatively unchanged in position . Cardiomediastinal contours are unremarkable . Basilar opacities likely reflect atelectasis . There is no pleural effusion . There is no pneumothorax .
    OUTPUT:
    
Basilar opacities likely reflect atelectasis ; infection can not be exlcuded .