Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right PICC has been removed . The cardiac silhouette size is normal . The aorta remains tortuous and demonstrates atherosclerotic calcifications . There is interval improvement in aeration of the lung bases , with no new focal consolidation demonstrated . Previously noted tracheostomy tube has been removed . The hilar contours remain prominent . There is no pneumothorax or large pleural effusion . The left lateral aspect of the chest has been excluded from the field of view .
    OUTPUT:
    
Slightly limited study , but since the prior study , improved aeration of the lung bases with no new areas of focal consolidation demonstrated .