Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lungs : An nearly 2 cm triangular density projects through the left lung base which was not present on the prior study . This could represent atelectasis or consolidation . Pleura : There is no pleural effusion . Mediastinum : No mediastinal mass is seen on this AP examination . Heart : The heart is not enlarged . Osseous structures : Right shoulder anchor is noted . Additional findings : The the PICC line projects over the SVC RA junction , in appropriate position . Monitor leads overlie the chest .
    OUTPUT:
    
The PICC line appears to be in satisfactory position . A density now projects over the cardiac silhouette which could represent atelectasis or early consolidation .