Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in steep semi-upright position . Comparison is made with the frontal view of the PA and lateral chest examination of ___ . A right - sided chest tube has been approached via the lower lateral chest wall and terminates in the right - sided apical area . There is a hazy density in the area of the previously described right superior mediastinal mass . There is a very small pleural separation in the upper lateral pleural space area but less than 2 mm . A significant pneumothorax in the apical area can not be identified . Lung tissue remains well aerated and unchanged in comparison with the pre-operative examination . No evidence of new parenchymal infiltrates and no signs of pulmonary vascular congestion .
    OUTPUT:
    
Unremarkable post-operative findings status post VATS resection for right superior mediastinal mass .