Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: THERE IS NO PLEURAL EFFUSION OR PULMONARY EDEMA . A vague , ellipsoid opacity is projects superior to the left hilum on both frontal and lateral views . This could be residual of pneumonia or a lung mass . The cardiac silhouette is within normal limits .
    OUTPUT:
    
1 . No acute cardiopulmonary process . 2 . Possible infection or left suprahilar mass . Recommend correlation with prior examinations , if available . Otherwise , recommend chest CT examination for further evaluation .