Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable chest radiograph demonstrates interval placement of the chest tube with tip difficult to evaluate but appears to be along the left base . There is increased dense opacification of the left hemithorax with air bronchograms present in the retrocardiac position . Increased density likely combination of known large left upper lobe mass as well as increased left lower lobe collapse and increased left pleural effusion . Right mediastinal and hilar borders are unremarkable . Right lung is clear . The right - sided pleural effusion evident .
    OUTPUT:
    
Interval placement of chest tube . Increased dense opacification of the left lower lobe , likely combination of large mass , increased effusion and left lower lobe collapse .