Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear unchanged allowing for differences in technique . There is predominantly perihilar opacification that is striking and new since the prior studies , suggesting pulmonary edema . There is also increasing right basilar opacification , which may reflect a coinciding pleural effusion , but is not well characterized versus elevation of the right hemidiaphragm , which could also be considered . The area is not completely imaged . There is no pneumothorax .
    OUTPUT:
    
Findings suggesting moderate pulmonary edema . Incompletely characterized right basilar opacification , which may reflect a pleural effusion , but is not well characterized .