Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: As compared to prior radiograph of 1 day earlier , a region of consolidation in the right upper lobe is unchanged , with adjacent cystic spaces peripherally attributed to paraseptal emphysema . Mild associated volume loss is present with shift of the adjacent mediastinal and hilar contours . Remainder of lungs are clear except for minimal scarring or atelectasis in the bases , and cardiomediastinal contours are unchanged
    OUTPUT:
    
Persistent right upper lobe consolidation potentially due to infectious pneumonia . Considering discordant Clinical future , a neoplasm mimicking an infectious process should also be considered . Consider CT for further characterization , particularly if the opacification fails to resolve on short - term followup radiographs