Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size , mediastinal and hilar contours are within normal limits and without change . Subtle area of increased opacity has developed in the right retrocardiac region , correlating to the posterior basilar segment of the right lower lobe on the lateral view . Lungs are otherwise grossly clear , and there are no pleural effusions or acute skeletal findings .
    OUTPUT:
    
Findings suggestive of right lower lobe pneumonia . Followup radiographs in four weeks after completion of antibiotic therapy may be helpful to document resolution , as entered in radiology communications dashboard on date of the study .