Lee Seung-Han, Park Sang-Woo, Kim Byeong C, Kim Myeong-Kyu, Cho Ki-Hyun, Kim Ji Soo
Department of Neurology, Chonnam National University Medical School, Republic of Korea.
Clin Neurol Neurosurg. 2010 Jan;112(1):68-71. doi: 10.1016/j.clineuro.2009.08.025. Epub 2009 Sep 22.
Trochlear palsy from intra-axial lesions usually accompanies other neurological deficits, and isolated trochlear palsy due to midbrain stroke is extremely rare. We report two patients with isolated trochlear nerve palsy due to circumscribed dorsal midbrain strokes, one from infarction and the other from hemorrhage, which are located in the region of the trochlear nucleus or adjacent fascicle. Focal brain stem stroke should be considered as a rare cause of trochlear palsy even though there are no associated neurological deficits.
轴内病变导致的滑车神经麻痹通常伴有其他神经功能缺损，而因中脑卒中介导的孤立性滑车神经麻痹极为罕见。我们报告了两例因局限性中脑背侧卒中导致孤立性滑车神经麻痹的患者，一例为梗死，另一例为出血，病变位于滑车神经核或相邻束区域。即使没有相关神经功能缺损，局灶性脑干卒中也应被视为滑车神经麻痹的罕见病因。
