| Sinus pericranii | |
|---|---|
| Specialty | Vascular surgery |
Sinus pericranii (SP) is arare disorder characterized by acongenital (or occasionally, acquired)epicranialvenousmalformation of thescalp.[1] Treatment of this condition has mainly been recommended foraesthetic reasons and prevention of bleeding.
Sinus pericranii typically presents as softpalpable masses along the midlineskull, which may fluctuate in size depending on body positioning.[2]
The nature of this malformation remains unclear.Congenital, spontaneous, and acquired origins are accepted. No evidence of associated anomalies, such as cerebral venous malformations, systemicangiomas, venous angioma dural malformations, internal cerebral veinaneurysms, andcavernous hemangiomas support the hypothesis of a spontaneous origin in the current case of SP.
Sinuspericranii is a venous anomaly where communication between the intracranial dural sinuses and dilatedepicranial venous structures exists. That venous anomaly is a collection of non-muscular venous blood vessels adhering tightly to the skull's outer surface and directly communicating with intracranialvenous sinuses throughdiploic veins. The venous collections receiveblood from and drain into the intracranial venoussinuses. Thevaricosities are intimately associated with theperiosteum, are distensible, and vary in size when changes inintracranial pressure occur.
Thesurgical treatment involves theresection of the extra-cranial venous package andligation of the emissary communicatingvein. In some cases of SP,surgical excision is performed forcosmetic reasons. Theendovascular technique has been described by a transvenous approach combined with a direct puncture and the recent endovascularembolization withOnyx.[3]