Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The right hemidiaphragm is mildly elevated . There is mild left base atelectasis . Slight blunting of the left costophrenic angle is most likely due to atelectasis versus less likely trace pleural effusion . Cardiac and mediastinal silhouettes are unremarkable . There are mild degenerative changes along the spine .
    OUTPUT:
    
Mild elevation of the right hemidiaphragm / eventration . Mild left base atelectasis which is less likely trace left pleural effusion .