PT  - JOURNAL ARTICLE
AU  - Liu, K.
AU  - Wen, G.
AU  - Lv, X.-F.
AU  - Deng, Yan-Jia
AU  - Deng, Yong-Jian
AU  - Hou, G.-Q.
AU  - Zhang, X.-L.
AU  - Han, L.-J.
AU  - Ding, J.-L.
TI  - MR Imaging of Cerebral Extraventricular Neurocytoma: A Report of 9 Cases
AID  - 10.3174/ajnr.A3264
DP  - 2013 Mar 01
TA  - American Journal of Neuroradiology
PG  - 541--546
VI  - 34
IP  - 3
4099  - http://www.ajnr.org/content/34/3/541.short
4100  - http://www.ajnr.org/content/34/3/541.full
SO  - Am. J. Neuroradiol.2013 Mar 01; 34
AB  - SUMMARY: Extraventricular neurocytoma is a rare entity, most frequently occurring in brain parenchyma outside the ventricular system. The purpose of this study was to characterize the MR imaging findings in a series of 9 patients with EVN verified by results of pathologic examination. All 9 EVNs were solitary and intracranially located. Eight lesions were well demarcated, and 3 showed intratumoral hemorrhage. The solid parts of 7 tumors were primarily isointense on T1-weighted images and heterogeneously enhanced on T1WI with contrast. Although cerebral EVNs can present a wide spectrum of appearances on MR, the imaging patterns appear to vary according to anatomic location and cellularity. Lesions in frontal or parietal lobes often present as well-demarcated large masses with cystic degeneration, hemorrhage, mild-to-moderate edema, and inhomogeneous enhancement. Moreover, the general isointensity of the solid parts of EVN on T1WI may be of some specificity. CNcentral neurocytomaEVNextraventricular neurocytomaWHOWorld Health Organization