MRI manifestations of dysplastic gangliocytoma of the cerebellum

VernacularTitle:小脑发育不良性节细胞瘤的 MRI 表现分析
Author: Yan SONG ; Hongwei XU ; Jingliang CHENG ; Hui JIN ; Yanzhao TAN
Publication Type:Journal Article
Keywords: dysplastic gangliocytoma; the cerebellum; magnetic resonance imaging
From: Journal of Practical Radiology 2014;(8):1275-1278
CountryChina
Language:Chinese
Abstract: Objective To discuss MRI characteristics of dysplastic gangliocytoma of the cerebellum.Methods MRI manifesta-tions of 13 cases with dysplastic gangliocytoma of the cerebellum verified by operation and pathology were analyzed retrospectively. Results All of 13 cases were located in the cerebellar hemisphere and vermis.The lesions presented striated pattern of iso-intensity signal and hypo-intensity signal on T1-weighted images.The sign of tiger stripes was the feature in dysplastic gangliocytoma on T2-weighted and FLAIR images.All of the tumors showed slightly striated enhancement after intravenous administration of contrast agent.The mass effects of dysplastic gangliocytoma of the cerebellum along with the forth ventricle and brain stem oppressed were seen in all cases.NAA was mildly reduced on magnetic resonance spectroscopy (MRS)in 7 cases of dysplastic gangliocytoma of the cerebellum.Conclusion There are distinctive manifestations in MRI images for dysplastic gangliocytoma of the cerebellum,which has crucial diagnostic value before operation.