Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left - sided PICC line terminates at the cavoatrial junction . The lung volumes are low with mild relative elevation of the right hemidiaphragm that appears unchanged . The cardiac , mediastinal , and hilar contours appear stable including mediastinal and left hilar lymphadenopathy . There is no definite pleural effusion or pneumothorax . There is a persistent medial left basilar opacity with a rounded contour , suggesting a pleural - based mass concerning for malignancy . Smaller nodules are not well depicted on radiographs .
    OUTPUT:
    
Stable appearance of the chest including lymphadenopathy and a left lower lobe opacity worrisome for malignancy .