O'Sullivan R M, Sheehan M, Poskitt K J, Graeb D A, Chu A C, Joplin G F
Department of Radiology, Vancouver General Hospital, B.C., Canada.
J Comput Assist Tomogr. 1991 Jan-Feb;15(1):52-5. doi: 10.1097/00004728-199101000-00006.
The clinical, CT, and magnetic resonance features of two cases of hypothalamic/optic chiasm involvement with Langerhans cell histiocytosis are presented. In both cases, the mass was iso- to hyperdense on noncontrast CT with uniform postcontrast enhancement, whereas with magnetic resonance (one case) the mass remained isointense to brain on both long and short repetition time sequences. The pathophysiology of hypothalamic pituitary dysfunction is briefly reviewed.
本文介绍了两例朗格汉斯细胞组织细胞增多症累及下丘脑/视交叉的临床、CT及磁共振特征。两例患者在非增强CT上肿块均呈等密度至高密度，增强扫描后均匀强化；而在磁共振成像中（其中1例），在长重复时间序列和短重复时间序列上肿块与脑实质均呈等信号。本文还简要回顾了下丘脑垂体功能障碍的病理生理学。
