Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable including a stable bulging contour to the right lateral mid peritracheal stripe suggesting lymphadenopathy , probably unchanged . There is no pleural effusion or pneumothorax , but there is new very mild right lateral pleural thickening . The lungs appear clear . The right lateral seventh rib shows a new contour irregularity with a sclerotic line suggesting interval fracture , otherwise age - indeterminant .
    OUTPUT:
    
Slight right lateral pleural thickening which may be seen after trauma inflammation or infection ; new but not very striking . Contour irregularity to the right lateral seventh rib , new since prior studies and consistent with a non-displaced fracture although otherwise of uncertain acuity .