[Two cases of pericranial sinuses (author's transl)].

The authors report two cases of "sinus pericranii" a rare vascular tumor of the skull, communicating with the meningeal veins or with the dural sinuses. The partial reduction in size of the tumor in the sitting position may aid the clinical diagnosis. The X ray diagnosis is highly enhanced by the direct injection of contrast medium into the tumor, leading to the visualization of the outflow in the miningeal veins, while external carotid angiography is normal. Step by step coagulation of the verious supply coming through the skull allows a non-bleeding surgical excision.