Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . There are low lung volumes , which crowd the pulmonary vasculature . There is elevation of the right hemidiaphragm . There is moderate cardiomegaly . Given the significant overlying soft tissue , low lung volumes are difficult to assess for subtle consolidation ; however , no definite consolidation is identified . No pleural effusion or pneumothorax .
    OUTPUT:
    
Moderate cardiomegaly . Limited study but no definite acute cardiopulmonary process .