Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided . Rib deformities of the left seventh and eighth lateral rib arches noted which appear new from the prior exam . There is subtle underlying opacity which could represent pleural thickening . Otherwise the lungs appear clear . No pneumothorax or effusion . Cardiomediastinal silhouette appears normal .
    OUTPUT:
    
Rib deformities , left seventh and eighth lateral arch , new from prior with adjacent opacity suggestive of pleural thickening . No pneumothorax .