Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable semi-upright radiograph of the chest is limited secondary to overlying cardiac monitoring device . Lung volumes are low , resulting in bronchovascular crowding . Persistent hazy alveolar opacities in the right perihilar region and right lung base , with interval peripheral clearing are consistent with infection . The left lung is relatively clear . The heart and mediastinal contours are unchanged . No pneumothorax .
    OUTPUT:
    
Right - sided parenchymal opacities compatible with infection .