Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable . There is slight prominence of the left hilum on the frontal view which is likely due to overlap of vascular structures , although underlying mild hilar lymphadenopathy is not entirely excluded in the appropriate clinical setting .
    OUTPUT:
    
Clear lungs . Slight prominence of the left hilum on the frontal views\ only , not well seen on the lateral view , most likely due to overlying vascular structures ; however , in the appropriate clinical setting hilar lymphadenopathy can not be entirely excluded .