Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again seen are multifocal airspace opacities , most confluent in the left upper lobe with relative clearing of a previously demonstrated confluent opacity at the right lung base . Appearances are suspicious for multifocal pneumonia versus asymmetric pulmonary edema . No definite pleural effusion seen . No pneumothorax seen . A nasogastric tube terminates in the stomach . There has been interval removal of a left - sided PICC and a right - sided internal jugular catheter . A right shoulder arthroplasty is noted .
    OUTPUT:
    
Persistent bilateral multifocal airspace opacities with some clearing of the right lung base but more confluent opacification in the left upper lobe . Appearances suspicious for multifocal pneumonia although asymmetric pulmonary edema could have a similar appearance .