Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Findings compatible with known right - sided non-small cell lung cancer are grossly stable since CT from ___ including a large right apical mass , collapse , and diffusely increased opacification of the right hemithorax including a layering right pleural effusion . The left hemithorax remains well aerated with no focal opacities concerning for pneumonia . There are no pleural effusions or pneumothorax . There is volume loss on the right with associated rightward mediastinal shift . The cardiomediastinal and hilar contours are normal . The pulmonary vascularity is normal .
    OUTPUT:
    
Evaluation of the right hemithorax is limited by a known large right apical mass , collapse , and pleural effusion . Within these limitations grossly stable appearance of the right chest since ___ and the left lung remains well - aerated .