視神経路に浮腫を生じた転移性鞍上部腫瘍の1例

A Case of Metastatic Suprasellar Tumor with Edema along the Optic Pathway

Ⅰ．はじめに

　トルコ鞍近傍部腫瘍の中で視神経系に発生する浮腫は視神経膠腫^1,4,9）において通常みられ，また，頭蓋咽頭腫によって視神経が圧迫された場合にもみられ特徴的であると報告されている^11,19）．われわれは，視神経・視交叉・視索に沿って浮腫を生じた稀な転移性鞍上部腫瘍を経験したので，文献的考察を加えて報告する．

A rare case in presented of a patient with edema formation along the optic pathway, which was caused by meta-static suprasellar tumor mimicking craniopharyngioma. A 63-year-old female with visual disturbance, diabetes insip-idus, and symptomatic panhypopituitarism was admitted to our hospital. CT images showed a suprasellar mass lesion. MR images demonstrated a heterogeneously enhanced tumor and edema along the optic nerve and tract.