Imaging Findings of Sinus Pericranii: A Case Report

顱骨膜竇是種少見的血管病變，會產生顱內和顱外循環不正常的血管相交通。本篇文章報告有關顱骨膜竇的影像表現。一位25歲的男性發現在前額有個軟性腫塊，頭向下時會變大，素片可見額頭骨不規則的變薄，電腦斷層和磁振造影可見在前額有不正常的顱外血管叢可能和顱內上矢狀竇直接相交通，並伴隨顱內的靜脈瘤。頭部血管攝影卻只見顱內靜脈瘤而不見顱骨膜竇顯影。因此，直接經皮穿刺竇內攝影才可見顱骨膜竇與顱內上矢狀竇直接相交通。雖然顱骨膜竇可就臨床表現而診斷，但影像檢查可以進一步確認不正常的血管與上矢竇相交通，而且可發現顱骨的變化及伴隨的病變。

關鍵字

顱骨，異常；顱骨，電腦斷層；顱骨，磁振造影

並列摘要

Sinus pericranii is a rare vascular anomaly involving an abnormal communication between the extracranial and intracranial circulation. We presented the imaging findings of a case with sinus pericranii. A 25 year-old man presented with a soft mass in the forehead, which increased its size in a head down position. Plain radiography demonstrated focal irregular thinning of the frontal bone. Computed tomography and magnetic resonance imaging showed an abnormal extracranial vascular pooling in the frontal region with a suspicious communication with the underlying superior sagittal sinus (SSS), and the associated intracranial venous angioma. In cerebral angiography, no opacification of extracranial vascular lesion was seen and only venous angioma was confirmed. Direct percutaneous sinography well delineated the direct communication between the extracranial venous sac and the SSS. Although sinus pericranii can be suggested by the clinical presentation, imaging studies are useful in showing the vascular nature of the lesion with communicating tracts to the SSS, as well as associated calvarial change and other anomalies.

並列關鍵字

Skull, anomalies ； Skull, computed tomography ； Skull, magnetic resonance

國際替代計量

Imaging Findings of Sinus Pericranii: A Case Report

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