Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right Port -A - Cath tip near cavoatrial junction . No pneumothorax . Linear band of atelectasis in the left lung base is similar . Posterior left costophrenic angle opacity , likely represents atelectasis , similar compared with abdominal radiograph from earlier today , new since ___ there is trace left pleural effusion , similar . Right lung is clear . Shallow inspiration accentuates heart size , pulmonary vascularity .
    OUTPUT:
    
Tiny left pleural effusion . Left basilar opacity , likely atelectasis , similar compared with radiograph from today , new since CT from ___ .