Senthilvelan Santhakumar, Kandasamy Sathish, Chandrasekharan Kesavadas, Thomas Bejoy, An Deepti
Department of Imaging Sciences and Interventional Radiology, Sree Chitra Tirunal, Institute for Medical Sciences and Technology, Trivandrum, Kerala, 695011, India.
Department of Pathology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India.
Neurol Sci. 2020 Jul;41(7):1935-1938. doi: 10.1007/s10072-020-04364-y. Epub 2020 Apr 1.
Cortical ependymomas are uncommon lesions. We report a cortical ependymoma displaying an unusual imaging pattern. The lesion demonstrated a T1 hyperintense rim and limited perilesional edema but lacked contrast enhancement. T1 hyperintense rim and stalk-like ventricular extension of FLAIR hyperintensity have previously been considered pathognomonic of angiocentric glioma. Hence, we conclude that the radiologists should be aware of this uncommon imaging pattern of cortical ependymoma. The condition warrants prompt surgical management in view of the increased potential for higher grade transformation, unlike grade I roman numeral may be given angiocentric gliomas.
皮质室管膜瘤是罕见病变。我们报告一例呈现不寻常影像学表现的皮质室管膜瘤。该病变显示T1加权像高信号边缘且病灶周围水肿有限，但无强化。T1加权像高信号边缘以及液体衰减反转恢复序列（FLAIR）高信号的茎状脑室延伸此前被认为是血管中心性胶质瘤的特征性表现。因此，我们得出结论，放射科医生应知晓皮质室管膜瘤这种不常见的影像学表现。鉴于其向高级别转化的可能性增加，与血管中心性胶质瘤可能被归为I级不同，这种情况需要及时进行手术治疗。
