Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs were obtained . Low lung volumes accentuate the central pulmonary vasculature , similar to ___ . No focal consolidation , effusion , or pneumothorax is present . Heart size is accentuated by low lung volumes .
    OUTPUT:
    
Low lung volumes . No acute cardiopulmonary process .