Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is consolidation within the left upper lung , localized to the upper lobe on the lateral , concerning for pneumonia . However , the consolidation has convex outward borders , and this should be followed up with a repeat chest radiograph to ensure resolution . The lungs are otherwise clear . No pulmonary edema . Cardiomediastinal silhouette is within normal limits . No pleural effusion . No pneumothorax .
    OUTPUT:
    
Consolidation within the left upper lobe , which likely represents pneumonia , however due to the convex outward borders , this should be followed to resolution to ensure there is no underlying malignancy .