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CC BY-NC-ND 4.0 · Arq Neuropsiquiatr 2018; 76(07): 494
DOI: 10.1590/0004-282X20180040
IMAGES IN NEUROLOGY

Ring-shaped lateral ventricular nodules: a “leave me alone” lesion

Nódulos ventriculares laterais em formato de anel: uma lesão “não me toque”
Marcos Rosa Júnior
1   Universidade Federal do Espírito Santo, Hospital Universitário Cassiano Antçnio de Moraes, Empresa Brasileira de Serviços Hospitalares, Departamento de Neurorradiologia, Vitória ES, Brasil;
,
Vera Lúcia Ferreira Vieira
2   Universidade Federal do Espírito Santo, Hospital Universitário Cassiano Antçnio de Moraes, Departamento de Neurologia, Vitória ES, Brasil.
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A 34-year-old female presented at our facility with headache. The MRI showed ring-shaped lateral ventricular nodules (RSLVNs) ([Figure]).

Zoom Image
Figure MRI, axial balanced, a three-dimensional steady-state free precession T2-weighted imaging (A), FLAIR (B) and T1-post gadolinium (C), obtained at the level of the roof of the lateral ventricles show ring-shaped left lateral ventricular nodules (arrows) with no contrast enhancement.

The RSLVNs are an incidental finding on MRI in patients who undergo neuroimaging mainly for headache.[1] The nature of the RSLVNs is controversial and includes neuroglial/glioependymal cyst, inflammatory or reactive formation of ependyma, astrocytic gliosis reaction near subependymal veins, redetachment of the fused portion of coarctation of the frontal horn or a variant of subependymoma[1],[2]. In the differential diagnosis, the most common pathological entities are subependymal heterotopias, usually found in patients with epilepsy and subependymal nodules in patients with tuberous sclerosis[1].



Publikationsverlauf

Eingereicht: 10. Januar 2018

Angenommen: 07. Februar 2018

Artikel online veröffentlicht:
25. August 2023

© 2023. Academia Brasileira de Neurologia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commecial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/)

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  • References

  • 1 Shimono T, Hosono M, Ashikaga R, Kumano S, Imaoka Y, Okada M et al. Ring-shaped lateral ventricular nodules: an incidental finding on brain magnetic resonance imaging. Neuroradiology. 2009;51(3):145-50. https://doi.org/10.1007/s00234-008-0476-5
  • 2 Friedman DP. Abnormalities of the deep medullary white matter veins: MR imaging findings. AJR Am J Roentgenol. 1997;168(4):1103-8. https://doi.org/10.2214/ajr.168.4.9124123