颅骨膜血窦是一种罕见的血管畸形，颅内与颅外血液循环借扩张的颅骨板障静脉形成异常交通。

Sinus pericranii is a rare vascular anomaly involving an abnormal communication between the intracranial and extracranial circulations through dilated diploic veins of the skull.

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因此，直接经皮穿刺窦内摄影才可见颅骨膜窦与颅内上矢状窦直接相交通。

Direct percutaneous sinography well delineated the direct communication between the extracranial venous sac and the SSS.

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