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I.はじめに
下垂体腺腫のextrasellar extensiollはJefferson1)によれば「鞍外部が鞍内部に対して少なくとも同じぐらいの大きさか,あるいはより大きい腺腫」と定義されている。その進展方向から1)frontal extension,2)hypothalamie extension,3)parasellar extension,4)temporal extension,5)posterior extension,6)nasopharyngealextensionの6型に分類される。われわれは鼻閉のみを主訴としnasopharyngeal & temporalextensionを示した巨大な下唾体腺腫の1例を経験したので報告する。
A 15-year-old female patient with a pituitary adenoma complained of nasal obstruction due tonasopharyngeal extension of tumor. CT revealed a large mass extending to the temporal fossa, sphenoid sinus and epipharynx. Pathological examination showed the tumor mostly composed of chromophobe adenoma and partly of eosinophilic cells. 60Co irradiation with total dose of 59.4 Gy markedly decreased the size of tumor. Although she presented hypopituitarism after irradiation, she has been well controlled by hormonal therapy.
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