PVL lacks specific symptoms and the diagnosis of PVL depends on imageology.
PVL无特异性症状，诊断依赖于影像学检查。
Methods The clinical data and imageology data of 21 patients of CVST were analyzed retrospectively.
方法回顾性分析21例CVST患者的临床及影像学检查资料。
Results 43 cases of patients with an average follow-up of 26 months, imageology showed good efficacy.
结果43例患者平均随访26个月，影像学显示疗效优良。
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