| 单词 | Transitional Meningiomas |
| 释义 | Transitional Meningiomas《英文msh词典》Transitional Meningiomas [入口词] Transitional Meningiomas [主题词] Meningioma [英文释义] A relatively common neoplasm of the central nervous system that arises from arachnoidal cells. The majority are well differentiated vascular tumors which grow slowly and have a low potential to be invasive,although malignant subtypes occur. Meningiomas have a predilection to arise from the parasagittal region,cerebral convexity,sphenoidal ridge,olfactory groove,and spinal canal. They tend to present in the fourth to sixth decades of life with signs indicative of a slowly progressive mass lesion. Specific clinical manifestations depend on the location of the tumor,but may include INTRACRANIAL HYPERTENSION,cranial neuropathies,ataxia,and other focal neurologic signs. (From DeVita et al.,Cancer: Principles and Practice of Oncology,5th ed,pp2056-7) |
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