Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are compared to previous exam from ___ . There is near - complete opacification of the right hemithorax , minimal aerated lung at the right lung base . There is no significant shift of the mediastinum suggesting combination of underlying effusion with atelectasis and possible consolidation or cancer . There is also increased parenchymal opacity in the left lung which is more confluent at the base in the lower lobe , which could represent a superimposed infectious process . Underlying malignancy is also possible . Cardiomediastinal silhouette is difficult to assess given diffuse bilateral abnormalities . Osseous and soft tissue structures are unremarkable .
    OUTPUT:
    
Near - complete opacification of the right hemithorax likely due to a combination of effusion and underlying atelectasis with possible consolidation / tumor . Left lung regions of parenchymal opacity potentially due to infectious process with underlying malignancy also possible .