Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Comparison can be made to ___ . The heart is normal in size . The mediastinal and hilar contours appear within normal limits . Incidental note is made of an azygos fissure , which is a common normal variant . There is a similar mild prominence of central pulmonary arterial vascularity but fairly similar with no definite evidence for acute change . The bony structures are unremarkable .
    OUTPUT:
    
Mildly prominent central pulmonary vessels , as seen previously , but without definite evidence for acute cardiopulmonary disease .