方法：选自12例本病患者。
本病患者有神经系统损害，特别是脑干损害者尤为明显。
These changes were, obvious in patients with injury of nervous system especially injury of brain stem.
方法：回顾性分析3例本病患者的临床资料并复习文献。
Methods:Clinical data of 3 cases of inverted papilloma in upper urinary tract were analysed retrospectively and reviewed with related literatures.
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