Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiomediastinal contours are normal . The upper lungs are clear . Small bilateral pleural effusions with adjacent atelectasis have markedly decreased from prior study . There is no pneumothorax . The osseous structures are unremarkable . Left PICC tip is in the left brachycephalic vein .
    OUTPUT:
    
Decrease in size in small bilateral pleural effusions Left PICC tip is in the left brachycephalic vein .