Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Large left hydropneumothorax is re - demonstrated with near complete whiteout of the left hemithorax and air-fluid level projecting over the left posterior upper hemithorax . There is no significant rightward shift of mediastinal structures . Heart size is difficult to assess given the presence of the large left hydropneumothorax . Left basilar opacification reflecting a combination of compressive atelectasis with likely infection is again noted . Right lung demonstrates a calcified granuloma in the right upper lobe . No focal consolidation is seen in the right lung . Previously noted ground - glass nodular opacities in the right middle and lower lobes are not well visualized on the current exam . No acute osseous abnormalities identified .
    OUTPUT:
    
Large left hydropneumothorax with left basilar opacification concerning for infection as seen on the prior CT . Ground - glass nodular opacities in the right lung base seen on prior CT are not well assessed on the current exam .