Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest provided demonstrate obscuration of the right heart border which is likely due to the pectus excavatum deformity . No definite sign of pneumonia or CHF . No pleural effusion or pneumothorax seen . Heart size and mediastinal contour appear normal . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
No acute intrathoracic process . Obscuration of the right hemidiaphragm due to pectus excavatum deformity .