摘要
本文复习204例经病理组织学检查证实的脑膜瘤的CT影像。多数病例的CT表现为是在脑膜瘤好发部位有边界清楚、均匀高密度区、伴有或不伴有周围水肿,肿瘤周围水肿发生率是56.2％。在统计学上有意义的与水肿发生呈相关的因素是癫痫发作,颅内压增高,肿瘤位于大脑凸面或矢状窦旁,肿瘤侵及静脉窦,及临床病史较长。 本组24例(占11.8％)CT表现被误诊,本文对导致误诊的因素进行了讨论,并提出有助于鉴别诊断的某些要点。
CT scans of 204 pathological verified intra cranial meningioma were studied.In most cases, it was easy to detect the meningioma on CT scan by its characteristic features as a round like high density area with well defined margins and possibly surrounded by low density area of brain edema.In this series the overall incidence of peritumoral edema was 56.2%.It was correlated with seizures and intracranial hypertension,tumor locationl (cerebral convexity or parasagittal position),dural sinus invasion,and long clinical history.24 cases(1.8%) misdiagnosed on CT scan There were gliomas,metastatic tumors, craniopharyngiomas or acoustic neuromas.The factors leading to the misdiagnosis are discussed,and some points in differential diagnosis of meningioma are presented.
出处
《中华神经外科杂志》
CSCD
北大核心
1989年第3期177-181,共5页
Chinese Journal of Neurosurgery
