Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There is slight blunting of the costophrenic angles on the frontal view , though not well substantiated on the lateral view . There is mild prominence of the interstitial markings which are somewhat indistinct . On the lateral view , there is a small patchy opacity projecting over the lower lung fields . No pleural effusion is seen . The cardiac and mediastinal silhouettes are stable and unremarkable .
    OUTPUT:
    
Mild interstitial edema . Patchy lower lung opacity seen on the lateral view could be due to infectious process . Recommend followup to resolution .