Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left PICC tip terminates in the mid SVC . The cardiac silhouette size is unchanged , with left ventricular predominance and mild cardiomegaly . The mediastinal and hilar contours are stable with calcification of the thoracic aorta again noted . The pulmonary vascularity is not engorged . Streaky opacities in the lung bases likely reflect atelectasis . Mild elevation of the right hemidiaphragm is unchanged . No large pleural effusion or pneumothorax is present . Partially imaged is a percutaneous transhepatic biliary catheter in the right upper quadrant of the abdomen .
    OUTPUT:
    
Streaky opacities in the lung bases likely reflect atelectasis .