Abstract
The patient was a 25-year-old female who only had a sudden headache. The CT and MR images suggested a hematoma due to a rupture of cavernous angioma in the right caudate nucleus. The MR images with gadolinium and angiography demonstrated an abnormal vein in the vicinity of the hematoma, suggesting a venous malformation. A surgical treatment was carried out using the transcallosal approach. Intraoperatively, we found numerous capillary vessels existed between the hematoma and extending vein, suggested a venous malformation, surrounding the hematoma. The capillary vessels were severed, and then the hematoma was completely removal, but the extending vein retained. Postoperatively, there was no neurological or physical deficit. A thorough investigation of the hematoma led to a histological diagnosis a cavernous angioma. The pathological condition in this case was identified as a mixed cerebrovascular malformation, which consisted of venous malformation and cavernous angioma. In this paper, we reviewed clinical features of 21 mixed cerebrovascular malformation cases including the present case.
