Objective: to discuss the causes of symmetric lesions of subcortical gray matter nuclei with clinical manifestation from neuroimaging study, and to improve the diagnosis ability.
目的从影像学角度，结合临床表现探讨双侧对称性灰质核团病变的病因，提高诊断水平。
2
In the mesencephalon, OXB-IR fibers were located in the central gray substance, superior and inferior colliculi, interpeduncular nucleus and raphe nuclei.
在中脑分布于中脑中央灰质、前丘、后丘、脚间核和中缝核；
3
The average nucleus nucleigray scale of high irradiation dose was lower than that of low irradiation dose (P<0.05 ) .