Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: LOW LUNG VOLUMES MAKE ALL IT IMPOSSIBLE TO TO EXCLUDE AN INTERSTITIAL PULMONARY ABNORMALITY , AT THE RIGHT LUNG BASE . A 3 .4 x 3 .8 cm mass in the mid left lung , PROBABLE LEFT HILAR ENLARGEMENT , AND POSSIBLE MEDIASTINAL ADENOPATHY IN THE LOWER PARATRACHEAL STATIONS ARE PRESUMABLY DUE TO THE REFERENCED LUNG CANCER . No focal consolidation suggestive of pneumonia is identified . There is no appreciable pleural effusion or pneumothorax . NO PNEUMOPERITONEUM .
    OUTPUT:
    
NO PNEUMOPERITONEUM . LEFT LUNG MASS , IPSILATERAL HILAR AND POSSIBLE MEDIASTINAL ADENOPATHY .