Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate a normal cardiomediastinal silhouette . Lung volumes are slightly low with associated crowding of bronchovascular structures at the lung bases . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
No evidence of pneumonia or mass . If hemoptysis persists , CT would be recommended to exclude a radiographically occult cause for the symptom .