Imaging findings of atypical teratoid/rhabdoid tumor of central nervous system with clinical correlation

VernacularTitle:小儿中枢神经系统非典型畸胎瘤样/横纹肌样瘤的影像表现
Author: Wangchun DAI ; Hongsheng LIU ; Xiwen CHEN ; Sihui ZENG ; Qianqian WU ; Yuankai CHEN ; Zhenqing LIU
Keywords: Atypical teratoid/rhab doid tumor; Magnetic resonance imaging; Child
From: Chinese Journal of Radiology 2017;51(8):612-615
CountryChina
Language:Chinese
Abstract: Objective To evaluate the imaging characteristics of atypical teratoid/rhab doid tumor (AT/RT) of central nervous system(CNS), and to improve the diagnostic ability of the disease. Methods The clinical and imaging findings of 9 patients were retrospectively analyzed. There were 5 male and 4 female, ages 7 months to 5 years,median age was 1.4 years. MR enhancement studies were obtained in all the cases. One case had CT enhancement examination. Results The lesions were seen in brain in 8 cases and in lumbosacral spinal cord in one case. The tumors size varied from 4.8—7.8 cm, Necrosis was seen in nine cases, cystic change in eight cases and hemorrhage in five cases. The tumors had high signal on DWI, and low signal on ADC map. Dura matter invasion(2 cases), cerebrospinal fluid spread(2 cases)and intracerebral metastasis were seen. Conclusion There are some relatively specific imaging findings of primary CNS AT/RT that could assist their diagnosis.