Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right PICC terminates in the lower SVC . The previously layering left pleural effusion is now more dependent , likely due to patient positioning . Linear air - fluid level in the left lung base is concerning for hydropneumothorax . No new parenchymal opacity is appreciated .
    OUTPUT:
    
As radiography is not sensitive for pulmonary for , no definite pulmonary infarct is seen . Linear air - fluid level at the left lung base is concerning for hydropneumothorax .