Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Previously noted right lower base nodule may be an old rib fracture but can not fully exclude a nodule without further evaluation with a chest CT . Large hiatal hernia noted . The lungs are clear without focal consolidation . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Large hiatal hernia . Previously noted possible right base nodule could not be excluded with current repeat radiographs . Consider chest CT as the next imaging modality .