Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left apical pneumothorax is small . The degree of pleural fluid at the left lung base is similar , small . Right lung is clear . Left lower lobe atelectasis , sternal wires , and aortic valve replacement are similar to the prior radiograph . Mildly displaced left mid-clavicular fracture is unchanged in alignment and displacement from the prior radiographs . Known 1st rib fracture is not well seen .
    OUTPUT:
    
Similar appearance compared to ___ : 00 , with small left apical pneumothorax and small left pleural effusion .