Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs were obtained . Exam is limited by soft tissue attenuation . Low lung volumes result in crowding of bronchovascular structures , especially at the lung bases . Cardiac and mediastinal contours are normal .
    OUTPUT:
    
Low lung volumes . Repeat chest radiograph with improved inspiratory level may be helpful for more complete evaluation of the lung bases when the patient 's condition allows .