Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph was provided . Overlying EKG leads somewhat limit the evaluation . The lungs appear clear without focal consolidation , effusion , or pneumothorax . The cardiomediastinal silhouette appears normal . Previously noted right middle lobe collapse has resolved in the interval . Cardiomediastinal silhouette appears stable . Bony structures are intact . No free air below the right hemidiaphragm .
    OUTPUT:
    
No signs of pneumonia . Interval resolution of right middle lobe collapse .