Seur N H, Kooman A
Neuroradiology. 1976;12(3):177-83. doi: 10.1007/BF00341863.
Two patients with an arachnoid cyst of the middle fossa showed paradoxical changes of the adjoining bony structures of the skull. There was a diminution of the middle fossa and hyperplasia of the sphenoid sinus (pneumosinus dilatans) as well as a marked bulging of the squamous part of the temporal bone. In one case in which scinticisternography was performed, communication between the cyst and the subarachnoidal space was proven as well as an extremely slow cerebrospinal fluid circulation in the cyst. The pathogenesis of the cyst is discussed, based upon the structural changes of the skull, the angiographic findings and the locally disturbed cerebrospinal fluid circulation. The primary disturbance seems to be a temporal lobe agenesis.
两名患有中颅窝蛛网膜囊肿的患者显示出颅骨相邻骨质结构的反常变化。中颅窝变小，蝶窦（气化性鼻窦扩张）增生，颞骨鳞部明显膨出。在其中一例进行放射性脑池造影的病例中，证实囊肿与蛛网膜下腔相通，且囊肿内脑脊液循环极其缓慢。基于颅骨的结构变化、血管造影结果以及局部脑脊液循环紊乱，对囊肿的发病机制进行了讨论。原发性紊乱似乎是颞叶发育不全。
