Eggenberger E
Unit for Neuro-Visual Disorders, Michigan State University College of Osteopathic Medicine, East Lansing 48824-1313, USA.
J Neuroophthalmol. 1998 Jun;18(2):114-6.
Three cases of isolated one-and-a-half syndrome with facial nerve palsy related to infarction are presented. Magnetic resonance imaging in cases 1 and 2 was unremarkable, whereas magnetic resonance angiography demonstrated pathophysiologically significant vertebral basilar disease. Case 3 is unique due to its association with giant cell arteritis. Ipsilateral adduction improved to a greater extent than abduction in each case, perhaps providing insight into the exact localization of these lesions or selective vulnerability of the ocular motor structures within the pons. This combination of clinical findings, termed the 8-1/2 syndrome (cranial nerve 7 + 1-1/2), allows precise localization, and magnetic resonance angiography appears to be the imaging study of choice.
本文报告了3例与梗死相关的伴有面神经麻痹的孤立性一个半综合征病例。病例1和病例2的磁共振成像未见明显异常，而磁共振血管造影显示椎基底动脉存在具有病理生理学意义的病变。病例3因其与巨细胞动脉炎相关而独特。在每个病例中，同侧内收比外展改善程度更大，这可能有助于深入了解这些病变的确切定位或脑桥内眼动结构的选择性易损性。这种临床发现的组合，称为8又1/2综合征（第7对颅神经+1又1/2），有助于精确的定位，磁共振血管造影似乎是首选的影像学检查。
