Abstract：Objective: To study the MRI findings of rhabdoid meningioma in order to improve the diagnostic rate and reduce misdiagnosis. Methods: A retrospective analysis of 2 rhabdoid meningiomas confirmed by surgery and pathology, combined with 9 cases reported in the literature, were studied. Results: Among the 11 cases of rhabdoid meningioma, 7 of them were female, 4 of them were male. Eleven tumors were solitary, 7 of them were cystic, and 4 of them were mixed. The solid part of tumor mainly showed equal signal in T1WI, while in T2WI it showed slightly hyperintensity. The cystic part of tumor showed hypointensity in T1WI and hyperintensity in T2WI. Two rhabdoid meningiomas showed uniform enhancement, 9 cases showed inhomogeneous enhancement. Six tumors presented with dural tail sign. Five of them showed peritumoral vascular tortuosity and flow void signal. While 6 of them showed peritumoral edema. Pathology revealed by most of rhabdomyoblasts like tumor cells constitute. The tumor tissues were easily found by necrosis, hemorrhage and vascular. Conclusion: The rhabdoid meningioma showed solid or cystic appearance on MRI, is characterized in or around the tumor showed low signal void shadow and peritumoral edema in different degree, but because of the lack of specific feature, the final diagnosis depends on pathological examination.
唐文兵，肖 慧，陈自谦. 横纹肌样脑膜瘤MRI表现并文献复习[J]. 中国临床医学影像杂志, 2017, 28(12): 837-840.
TANG Wen-bing, XIAO Hui, CHEN Zi-qian. Analysis and comparison between MRI findings of rhabdoid meningioma and literature review. JOURNAL OF CHINA MEDICAL IMAGING, 2017, 28(12): 837-840.
