Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided PICC terminates in the region of the low SVC without evidence of pneumothorax . There are low lung volumes . Multifocal bilateral pulmonary opacities have increased in the interval , which may be due to increased pulmonary edema or infectious process , on a background of chronic pulmonary opacities . No large pleural effusion is seen . There is no pneumothorax . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Increase in bilateral pulmonary opacities may be due to increased pulmonary edema and / or infection overlying chronic pulmonary opacities .