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I.はじめに
トルコ鞍部腫瘍と鑑別を要する疾患としてlymphocy—tic adenohypophysitisが知られている.今回われわれは,妊娠後期に視力視野障害で発症した本疾患と考えられる1例を経験し,その自然経過をMRIでfollow upし得たので,若干の文献的考察を加えて報告する.
We report a case of a 26-year-old woman who had developed decrease of visual acuity, and restriction of the temporal visual field of the left eye in the 30th week of gestation. A skull roentgenogram showed no abnormality, but a pituitary mass was visualized by plain computed tomographic scan. Magnetic resonance imaging (MRI) demonstrated a symmetric sellar mass which had homogeneous signal intensity in all pulse sequences. T1 relaxation time of the mass was elon-gated as compared with that of a normal pituitary gland. The height of the mass was 11mm, and optic chiasm appeared compressed by the mass.
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