Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours are normal . Low lung volumes accentuate the bronchovascular structures , especially at the lung bases . There are no focal areas of consolidation or pleural effusion .
    OUTPUT:
    
1 . Low lung volumes . No radiographic evidence of pneumonia . 2 . If months is persists , consider chest CT to evaluate for radiographically occult cause of the symptom .