Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The right upper extremity PICC has been removed in the interim . The lungs remain well expanded and clear , with the exception of 1minimal left basilar atelectasis and effusion , unchanged . The cardiac silhouette is top normal , and the mediastinal contours are unchanged with slight tortuosity of the aorta and calcification of the knob .
    OUTPUT:
    
Unchanged left basilar atelectasis and small pleural effusion .