Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest . The left hemidiaphragm and left hilus are mildly elevated from prior lobectomy . There is no focal consolidation . There is no pleural effusion or pneumothorax . Cardiomediastinal silhouette is normal .
    OUTPUT:
    
Left upper lobectomy . No acute cardiopulmonary process .