Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart remains mildly enlarged , without significant change in the mediastinal and hilar contours . There is a persistent right pleural effusion , largely unchanged , with likely right basilar atelectasis . There is also a streaky left lung base opacity which may be atelectasis , also unchanged . Moderate degenerative changes of thoracic spine are demonstrated .
    OUTPUT:
    
1 . Largely unchanged chest radiograph since ___ , with a similar appearing right pleural effusion .