Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs were obtained . There are low lung volumes which accentuate the pulmonary vasculature . Despite this , there is no focal consolidation , effusion , or pneumothorax . Cardiomegaly is mild .
    OUTPUT:
    
Suboptimal due to low lung volumes . No definite evidence of infection or other acute cardiopulmonary process .