Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were obtained . Lung volumes are low which limits evaluation . There is no lobar consolidation , effusion , or pneumothorax . Slight prominence of bronchovascular markings in the lower lungs could indicate bronchial wall thickening or bronchovascular crowding . Cardiomediastinal silhouette appears normal . Bony structures appear stable .
    OUTPUT:
    
No definite signs of pneumonia . Slight prominence of bronchovasculature in the lower lung likely due to bronchovascular crowding , though the possibility of acute airway inflammation is not excluded given patient 's history .