Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . Low lung volumes are again noted with crowding of the bronchovascular markings . Streaky left basilar opacities are more conspicuous and may be due to atelectasis . Elevation of the left hemidiaphragm with respect to the right is again seen . Cardiomediastinal silhouette is stable . Left PICC is no longer visualized .
    OUTPUT:
    
No definite acute cardiopulmonary process .