Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are relatively low with secondary crowding of the bronchovascular markings . There is right basilar opacity overlying the hemidiaphragm , not well assessed . Right chest wall port is seen with catheter tip projecting over the right atrium . The cardiomediastinal silhouette is grossly within normal limits for portable technique . No acute osseous abnormalities .
    OUTPUT:
    
Low lung volumes . Right basilar opacity could be due to atelectasis although infection or aspiration are possible . Consider PA and lateral films for more complete assessment .