Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright portable chest radiograph obtained . There is subtle poorly defined opacity in the right mid lung and right lower lung concerning for multifocal pneumonia . There may also be ill - defined opacity at the left lung base , possibly also representing a focus of infection . No large effusion or pneumothorax seen . Overall , cardiomediastinal silhouette appears stable .
    OUTPUT:
    
Subtle scattered airspace opacities in the lower lungs and right mid lung , concerning for multifocal pneumonia . Followup to resolution advised .