Fishman R A, Dillon W P
Department of Neurology, University of California, San Francisco 94143.
Neurology. 1993 Mar;43(3 Pt 1):609-11. doi: 10.1212/wnl.43.3_part_1.609.
We studied a patient with spontaneous intracranial hypotension whose gadolinium-enhanced MRI revealed an extraordinary degree of dural enhancement and striking displacement of the optic chiasm, flattening of the pons, and downward displacement of the cerebellar tonsils. These changes were reversed when a CSF leak at the site of a T12-L1 arachnoid cyst was closed following an epidural blood patch. Such diffuse meningeal enhancement results from the dural venous dilatation that accompanies a reduced CSF volume, a consequence of the Monro-Kellie rule.
我们研究了一名自发性颅内低压患者，其钆增强磁共振成像（MRI）显示硬脑膜强化程度异常，视交叉明显移位，脑桥变平，小脑扁桃体向下移位。当在硬膜外血贴后封闭T12-L1蛛网膜囊肿部位的脑脊液漏时，这些变化得到了逆转。这种弥漫性脑膜强化是由于脑脊液容量减少伴随硬脑膜静脉扩张所致，这是Monro-Kellie法则的结果。
