Spontaneous rupture of a huge mediastinal teratoma into the pleural cavity causing dyspnea is rare.A 14-year-old female presented with acute onset of severe chest pain, chills, fever, and dyspnea.

• 摘要纵膈腔巨大良性畸胎瘤破裂入肋膜腔造成呼吸困难是一罕见的并发症，一位14岁健康女性突发右侧胸痛、发冷、发热及呼吸困难。