We present our experience getting safely to a pontine cavernous malformation through a conventional mastoidectomy presigmoid approach preserving an ingurgitated superior petrosal sinus because the association with an abnormal venous drainage of the brainstem.
When sectioning the superior petrosal sinus in classical presigmoid approaches is contraindicated, its preservation could also offer good surgical corridors to get to small-medium anterior and lateral brainstem cavernous malformations.
方法:我们介绍了我们的经验,通过传统的乳突切除术治疗脑桥海绵状海绵状畸形,并保留了一个不完整的岩上窦,因为这与脑干静脉引流异常有关。
结论:当在经典的乙状窦入路中切开岩上窦是禁忌的,它的保存还可以提供良好的手术通道,以到达中小型前脑干海绵状畸形和外侧脑干海绵状畸形。