Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided cardiac borders are obscured , but the heart is probably at the upper limits of normal size . The mediastinal and hilar contours are otherwise unremarkable to the extent visible . Contours are partly obscured by opacification of the entire right lower lobe with volume loss and a pleural effusion . A round opacity projecting over the left lower lung suggests a nipple shadow . There is no net mediastinal shift . There is possibly a trace pleural effusion on the left , but not substantial . There is no pneumothorax .
    OUTPUT:
    
1 . Opacification of the right lower lobe with mild volume loss and a pleural effusion , probably at least small - to - moderate in size , although difficult to quantify . 2 . Probable nipple shadow projecting over the left lower chest . When clinically appropriate , confirmation with an additional PA view using nipple markers is suggested , however .