Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Again , there are patchy infiltrates at the bilateral bases and the right middle and upper lung zones . These appear to be in a similar distribution to the prior radiograph from ___ . No definite new opacities are identified and the opacities seen have not worsened . There is no pulmonary edema , pleural effusion , or pneumothorax . The cardiomediastinal silhouette is normal .
    OUTPUT:
    
Persistent patchy bilateral infiltrates , which could be multifocal pneumonia . Given that it has not improved with treatment ( although one week ) , other considerations would be an inflammatory process or an atypical infection . Suggest continued follow - up to assess for resolution . If warranted , this could be further characterized by CT .