Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is not enlarged . The cardiomediastinal contours are within normal limits . Ill definition of the inferior left hila on the frontal view shows no correlate on the lateral view and is therefore thought to represent artifact , possibly due to the configuration of the thoracic cage . Otherwise , the lungs are grossly clear without focal consolidation . There is no evidence of pulmonary vascular congestion . No pneumothorax or pleural effusion detected . No free air seen beneath the diaphragm . Note is made of mild right convex curvature centered in the mid thoracic spine .
    OUTPUT:
    
Doubt acute pulmonary process . Faint opacity in the left infrahilar region is seen only on the frontal view and is therefore thought to represent artifact .