Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP view of the chest . Lower lung volumes . The left - sided pleural effusion persists , may be slightly smaller , however , persists . Tiny left apical pneumothorax . Left basilar consolidation can not be entirely ruled out .
    OUTPUT:
    
Slight decrease in density in the left pleural effusion on this AP view may indicate slight decrease in size . Tiny apical left pneumothorax .