Multinodular and Vacuolating Neuronal Tumor of the Cerebrum (MVNT): A case series and review of the literature

• Published in: Journal of neuroradiology Vol. 47; no. 3; pp. 216 - 220
• Main Authors: Buffa, Geraldine Belén, Chaves, Hernán, Serra, María Mercedes, Stefanoff, Nadia Ivanna, Gagliardo, Allan Salvatore, Yañez, Paulina
• Format: Journal Article
• Language: English
• Published: France Elsevier Masson SAS 01.05.2020
• Subjects: Adolescent; Adult; Aged; Brain Neoplasms - complications; Brain Neoplasms - diagnostic imaging; Brain Neoplasms - epidemiology; Brain Neoplasms - pathology; Epilepsy; Female; Headache - epidemiology; Headache - etiology; Humans; Magnetic Resonance Imaging; Male; Middle Aged; MRI; Retrospective Studies; Seizures; Seizures - epidemiology; Seizures - etiology; Tumor; Young Adult; WI; HIS; DLGNT; MRI; Epilepsy; Tumor; CNS; DNET; MVNT; Seizures; WHO
• ISSN: 0150-9861
• DOI: 10.1016/j.neurad.2019.05.010

[Display omitted] •MVNT is a benign, stable lesion, which exhibits a typical radiological pattern.•MRI most of the times suffices to make a diagnosis, without the need of pathological confirmation.•Nevertheless, radiological follow-up is recommended. Multinodular and Vacuolating Neuronal Tumor of the cerebrum (MVNT) is a benign –seizure associated– lesion affecting mostly adults. This new entity has been included in the 2016 World Health Organization classification of tumors of the central nervous system. Its pathologic hallmark consist of a subcortical cluster of nodular lesions located on the subcortical white matter. We aim to report a series of cases of presumed MVNT observed in our institution and review the literature. In this retrospective study, a search was performed on our hospital information system. Sixteen cases were included. Demographic, clinical and radiological features were detailed in a table. All patients had an MRI acquired either on a 1.5 or a 3 Tesla scanner. Sequences performed included T1, T2, GRE/SWI, T2 FLAIR and DWI. Gadolinium enhanced T1-WI wer available in 11 patients and follow-up MRI were available in 7 patients. Patient ages ranged from 16 to 77 years (mean 42 years). Seizure and non-focal headache were by far the most common neurological complaints for which MRI was requested. All lesions consisted of clusters of multiple, discrete, round or ovoid, intra-axial, FLAIR and T2-WI hyperintense nodules. Follow-up MRI scans showed no changes between studies. MVNT is a benign, stable lesion that exhibits a typical radiological pattern that most of the times sufficed to arrive to a diagnosis, without the need of pathological confirmation. We confirm that our demographic, clinical and radiological findings are in accordance with those published in international literature.