Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A hemodialysis catheter ends in the right atrium from the IVC . Old dialysis fistulas are noted in each arm . The lung volumes are low . Diffuse ground glass opacities , greater on the right , and increased interstitial marking , are new since ___ . There is no pleural effusion or pneumothorax . The cardiac and mediastinal contours are normal . There is no free air beneath the right hemidiaphragm .
    OUTPUT:
    
Findings compatible with mild pulmonary edema likely secondary to fluid overload . A superimposed atypical pneumonia can not be excluded .