Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a large right lung opacity measuring approximately ___ x 8 cm , occupying nearly the totality of the paramediastinal region of the right lung . There is also an associated right - sided pleural effusion . Assessment of neoplastic process versus pulmonary inflammation within this consolidation is limited due to the lack of comparison studies . The left lung is unremarkable , without pleural effusion or focal opacity . The heart is not enlarged . There is no evidence of pneumothorax . Biapical pleuroparenchymal scarring is present , right greater than left .
    OUTPUT:
    
Large right lung opacity is compatible with known right upper lobe mass . A component of post-obstructive pneumonia can not be excluded . Associated right - sided pleural effusion may be paraneoplastic or inflammatory . Right basilar opacity may also be in part from atelectasis or infection .