Seo Eui-Kyo, Cho Yong-Jae, Koo Heasoo, Lim Soo-Mee
Department of Neurosurgery , Ewha Womans University, School of Medicine, Seoul, Korea.
J Korean Neurosurg Soc. 2008 May;43(5):250-2. doi: 10.3340/jkns.2008.43.5.250. Epub 2008 May 20.
Meningiomas frequently invade cerebral venus sinuses, especially parasagittal meningioma to superior sagittal sinus. However, most invasions do not reach internal jugular vein. We present a case of parasagittal meningioma extending into the internal jugular vein through the sinuses. Radiological investigation revealed that the tumor was invading the sagittal, transverse, sigmoid sinus and junction of the internal jugular vein to subclavian vein, which was filled with tumor. The histopathological examinations revealed that both the cerebral tumor and mass in the internal jugular vein contributed to the transitional meningioma. This is a rare case of a meningioma extending into the internal jugular vein through the sinuses. According to this case, the frontal parasagittal meningioma could invade directly the internal jugular vein. The significance of this association to cerebral venus sinuses and internal jugular vein are discussed.
脑膜瘤常侵犯脑静脉窦，尤其是矢状窦旁脑膜瘤侵犯上矢状窦。然而，大多数侵犯并未累及颈内静脉。我们报告1例矢状窦旁脑膜瘤经静脉窦延伸至颈内静脉的病例。影像学检查显示肿瘤侵犯矢状窦、横窦、乙状窦以及颈内静脉与锁骨下静脉交界处，此处充满肿瘤。组织病理学检查显示脑内肿瘤及颈内静脉内肿物均为过渡型脑膜瘤。这是1例罕见的经静脉窦延伸至颈内静脉的脑膜瘤病例。据此病例，额部矢状窦旁脑膜瘤可直接侵犯颈内静脉。文中讨论了这种与脑静脉窦和颈内静脉关联的意义。
