CT and MRI features of meningiomas of the skull
10.3760/cma.j.cn115354-20210402-00219
- VernacularTitle:颅骨脑膜瘤的CT及MRI表现特征
- Author:
Xuyan YE
1
;
Lefeng GU
;
Hanpeng ZHENG
;
Qiande QIU
Author Information
1. 浙江省乐清市人民医院放射科 325600
- Keywords:
Meningioma;
Skull;
Computerized tomography;
Magnetic resonance imaging
- From:
Chinese Journal of Neuromedicine
2021;20(10):1011-1015
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To investigate the CT and MRI features of meningiomas of the skull.Methods:A retrospective analysis was performed; the CT and MRI findings of 20 patients with meningiomas of the skull confirmed by pathology after surgery in our hospital from January 2008 to December 2020 were collected.Results:Fourteen patients had skull osteolytic destruction, 4 had osteogenic destruction, and 2 had mixed destruction. There were 12 patients with soft tissue masses and 11 with radial spicules. In 16 patients accepted CT examination, uniform density was noted in 10 and uneven density in 6; 8 had high density, 5 had equal density, and 3 had low density; 5 patients were with calcification. In 17 patients accepted MRI examination, 11 had uniform signal and 6 had un-uniform signal; T1WI had slightly low signal in 12 patients and equal signal in 5 patients; T2WI had slightly high signal in 12 patients and slightly low signal in 5 patients; diffusion weighted imaging (DWI) had high signal in 12 patients and slightly high signal in 5 patients. Totally, enhanced homogeneous enhancement was noted in 12 patients and inhomogeneous enhancement was noted in 8 patients; and there were 13 patients with "meningeal tail sign" and 11 with peritumoral edema.Conclusion:Bone in patients with meningiomas of the skull is characterized by osteolytic or osteogenic destruction with soft tissue masses and radial spicules; CT shows uniform or un-uniform tumor density, MRI shows uniform or un-uniform signals, and enhanced "meningeal tail sign" is characterized.
