Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The chest is somewhat underpenetrated due to body habitus . Volumes are slightly low , but there is no focal airspace opacity to suggest pneumonia . There is no pleural abnormality . Soft tissue fullness obliterates the right paratracheal stripe and the lateral view shows posterior displacement of the trachea . These could indicate mediastinal adenopathy or fat depositon . Any prior imaging should be obtained for review prior to requesting CT scan for evaluation .
    OUTPUT:
    
Possible mediastinal adenopathy . Check for any prior imaging to see if this is a new finding before requesting Chest CT scan . No evidence of acute cardiopulmonary . abnormality .