蛛网膜颗粒是一种正常的解剖结构 ,是蛛网膜突入到硬脑膜静脉窦内形成的绒毛状或颗粒状突起 ,脑脊液经此吸收循环[1 ] 。大的蛛网膜颗粒可引起静脉窦或颅骨的外压性改变 ,在影像学检查时 ,容易误诊为其他病理情况 ,所以 ,一直受到影像学研究的重视。本文将以往有关蛛网膜颗粒解 Arachnoid granules are a normal anatomical structure that is a villous or granular process of protrusion of the arachnoid into the dural venous sinus through which the cerebrospinal fluid is absorbed and circulated [1]. Large arachnoid granules can cause external pressure sinus or skull changes in the imaging examination, easily misdiagnosed as other pathological conditions, it has been the focus of imaging studies. This article will be related to the previous arachnoid particles solution