Retrospective analysis on neuroradiological features of central neurocytoma
- VernacularTitle:中央神经细胞瘤的影像学特征分析
- Author:
Dong ZHANG
- Publication Type:Journal Article
- Keywords:
brain neoplasm;
central neurocytoma;
computed tomography;
magnetic resonance imaging
- From:Journal of Third Military Medical University
1984;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the neuroradiological features of intraventricular central neurocytoma in ten patients.Methods Ten patients with central neurocytoma were imaged using contrast-enhanced and non-enhanced MRI scans,including 4 were also scanned with non-enhanced CT.The imaging data were studied with regard to location,size,margin,signal intensity,enhancement characteristics and presence of calcifications.Clinical data(i.e.presenting signs and symptoms,physical findings and medical history) were collected and histopathological and immunohistochemical studies were performed.Results There were 4 male,6 female in our group.All lesions were located in the lateral ventricles.Three tumors were confined to the left side,three to the right side and four involved both lateral ventricles.The growth of central neurocytoma was of close spatial relation to the septum pellucidum.In MRI,most of the cases showed a heterogeneous hypointensity on T1WI and hyperintensity on T2WI or FLAIR with a well-defined margin.The presence of cystic components,necroses and calcifications had been the cause of these internal heterogeneities.After intravenous administration of gadolinium(Gd-DTPA) all tumors showed a heterogeneous enhancement.CT provided additional information by distinguishing intratumoral calcifications in all four evaluated cases.Conclusion Central neurocytoma should be considered when young patients with lesions in the lateral ventricle,which contain calcifications and show some enhancement.This is especially applicable for tumors involving both lateral ventricles with symmetrical growth around the center of septum pellucidum or for unilateral ventricular tumors with a wide base attachment to the septum pellucidum.
