title: Nephroblastoma presenting with pneumomediastinum.
mesh_terms: D000293:Adolescent; D001984:Bronchial Neoplasms / Q000150:complications / Q000556:secondary*; D005260:Female; D006801:Humans; D007680:Kidney Neoplasms; D008478:Mediastinal Emphysema / Q000209:etiology; D013352:Subcutaneous Emphysema / Q000209:etiology; D009396:Wilms Tumor / Q000150:complications / Q000556:secondary*