Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph ___ at 00 : 13 is submitted .
    OUTPUT:
    
Right - sided large bore hemodialysis catheter is unchanged in position . The widened mediastinal contours persist , although there now appears to be increased right paratracheal soft tissue which raises concern for lymphadenopathy or possibly could represent distended venous structures due to a fluid replete state . The heart remains enlarged . There is prominent calcification of the aortic knob consistent with atherosclerosis . Low lung volumes with bibasilar patchy opacities may reflect aspiration , atelectasis , or pneumonia . Clinical correlation is advised . No overt pulmonary edema . No pneumothorax .