Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . Lower lung volumes seen on the current exam with secondary crowding of the bronchovascular markings . There is no definite confluent consolidation or overt pulmonary edema . The cardiomediastinal silhouette is within normal limits for technique .
    OUTPUT:
    
Unremarkable portable chest x-ray .