Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Compared to the prior exam , there are lower lung volumes which exaggerate the bronchovascular structures and crowd the mediastinum ; however , given this , there is no evidence of pneumonia . There is no pleural effusion . The aorta is tortuous . Cardiac size is normal . There are new clips in the right thyroid bed .
    OUTPUT:
    
No acute cardiopulmonary process .