Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mild - to - moderately enlarged . Fullness of the right paratracheal stripe may be due to underlying tortuous vessels . Fullness of the right hilum is likely accentuated by low lung volumes . No pulmonary vascular congestion is present . No focal consolidation , pleural effusion or pneumothorax is seen . Elevation of the right hemidiaphragm is noted . There are no acute osseous abnormalities .
    OUTPUT:
    
1 . Mild to moderate cardiomegaly without evidence for pulmonary edema . 2 . Fullness of the right hilum , possibly related to crowding of the bronchovascular structures as a result of low lung volumes . 3 . Widening of the right paratracheal stripe which may be due to underlying tortuous vessels , but underlying lymphadenopathy or lesion can not be excluded . A nonemergent chest CT with contrast can be obtained for further evaluation if no prior studies are available for comparison .