The microscopic appearance of this vascular malformation reveals the dilated, tortuous, worm-like vascular channels. Such lesions may bleed a small amount and be the cause for a seizure disorder.

• 血管畸形显微镜图像显示出扩张、扭曲、类蠕虫的血管通道，这种病变可能只引起少量出血，还是癫痫发作的一个原因。