The facial nevi associated with hydrocephalus and intracranial anomalous venous return of 3 case reports / 中华神经科杂志

Objective To study the clinical manifestation of intracranial anomalous venous return associated with the facial nevi and hydrocephalus. Methods Along with reviewing of the literatures, the clinical records of 3 patients suffered from the facial nevi and hydrocephalus were analyzed. Results All of 3 patients also have sinovenous occlusion, which affect cerebral venous return. Conclusions Intracranial anomalous venous return, which is induced by extensive sinovenous occlusion, has been considered to be the main cause of hydrocephalus in the facial nevi. The formation of sinovenous occlusion and anomalous venous return may be due to developmental defect in the embryonic stage.