Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lucency at the left lung apex is seen ; however , no definite pneumothorax is present . There is no focal consolidation or pleural effusion . Cardiomediastinal silhouette is notable for a tortuous aorta . Bony structures are intact .
    OUTPUT:
    
Lucency at the left lung apex without definite pneumothorax . If clinically concerned , repeat radiograph can be performed in a less lordotic position .