Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Since ___ , the left upper lobe nodule that is stable in size and appearance . Moderate hiatal hernia stable . The lung volumes are normal . Normal size of the cardiac silhouette . Normal hilar and mediastinal structures . No pneumonia , no pulmonary edema . No pleural effusions .
    OUTPUT:
    
Left upper lobe unchanged in size or appearance since ___ . Stable moderate hiatal hernia .