Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are fractures of the posterior left ___ and 6th ribs , as well as multiple other fractures which are not well seen . The degree of displacement in the 6th rib fracture appears more pronounced . There is a moderate left pleural effusion , which has increased in size from one week ago . In addition , on the lateral view , the sharp demarcation between the opacity and aerated lung raises concern for left lower lobe collapse . Moderate cardiomegaly is unchanged . There is no pneumothorax . Pulmonary vascularity is normal .
    OUTPUT:
    
1 . Moderate left pleural effusion is larger than seen on the radiographs from one week ago and is likely accompanied by left lower lobe collapse . This raises concern for hemothorax given the rib fracture . 2 . The left 6th rib fracture appears more displaced than on the prior study .