Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left PICC tip is seen terminating in the region of the distal left brachiocephalic vein . Tracheostomy tube is in unchanged standard position . The heart is moderately enlarged . Marked calcification of the aortic knob is again present . Mild pulmonary vascular congestion is similar . Bibasilar streaky airspace opacities are minimally improved . Previously noted left pleural effusion appears to have resolved . No pneumothorax is identified . Percutaneous gastrostomy tube is seen in the left upper quadrant .
    OUTPUT:
    
1 . Left PICC tip appears to terminate in the distal left brachiocephalic vein . 2 . Mild pulmonary vascular congestion . 3 . Interval improvement in aeration of the lung bases with residual streaky opacity likely reflective of atelectasis . Interval resolution of the left pleural effusion .