Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate mildly engorged pulmonary vasculature and slightly dilated azygos relative to prior . However , there is no sign of interstitial edema . There is no pleural effusion or pneumothorax . The heart size is still within normal limits .
    OUTPUT:
    
Mild pulmonary vascular engorgement without signs of interstitial edema .