Abstract：Objective To summarize the research progress of arachnoid granules(AG) and to provide theoretical basis for clinical research on arachnoid granulation.Methods Databases including PubMed and WanFang, CNKI Data were electronically searched with “arachnoid granulation”“arachnoid villi”“intracranial hypertension”“cerebral venous sinus thrombosis” in Chinese and English as the key words to collect the relevant studies from January 1960 to September 2018.Results AG are normal, macroscopically visible structures of arachnoid villus enlargement with similar components and functions.AG is most commonly found in the superior sagittal sinus, followed by the transverse sinus.Giant AG(＞10 mm) can cause sinus occlusion, intracranial hypertension, and even changes in the external pressure pattern of the skull.Cerebral venous angiography is the preferred method to observe AG, which can be combined with CT, MRI and other related cerebrovascular diseases for differential diagnosis.Conclusions Proficiency in the anatomical structure and imaging features of arachnoid granulation is an important basis for studying the changes of arachnoid granulation under clinical and pathological conditions.
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2019, Vol. 24 
