Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right PICC tip is now located within the distal left brachiocephalic vein , a change in position compared to the prior study . Previously noted enteric tube has been removed . Lung volumes are low . This accentuates the size of the cardiac silhouette which is at least mildly enlarged . The mediastinal contour is also some similarly widened due to low lung volumes but otherwise unremarkable . There is crowding of bronchovascular structures but no pulmonary edema is demonstrated . Linear and patchy opacities in the lung bases likely reflect atelectasis . Elevation of the right hemidiaphragm is unchanged . No large pleural effusion or pneumothorax is seen .
    OUTPUT:
    
1 . Right PICC tip now terminates within the proximal left brachiocephalic vein and should be repositioned . 2 . Low lung volumes with probable bibasilar atelectasis . Pneumonia , however , is not excluded in the correct clinical setting .