Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right PICC probably terminates in the upper right atrium . Cardiomediastinal silhouette is unchanged . Left pleural effusion has decreased . Lungs are clear .
    OUTPUT:
    
1 . The right PICC can be pulled back by approximately 1 .5 cm for optimal placement in the lower SVC . 2 . Decreased left pleural effusion .