Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral chest radiographs demonstrate low lung volumes . Cardiomegaly is unchanged . Cardiomediastinal contours are otherwise unremarkable . Increased interstitial markings with cephalization of the vessels suggest mild pulmonary edema . No consolidations or large effusions . Marked thoracic kyphosis is noted .
    OUTPUT:
    
Mild pulmonary edema .