A benign entity – cerebral multinodular and vacuolating neuronal tumor

Abstract

Introduction and aim. Multinodular and vacuolating neuronal tumor (MVNT) of the cerebrum is a rare benign, mixed glial/ neuronal lesion which has been included in the recent (2016) World Health Organization (WHO) Classification of the central nervous system tumors.Most of the reported cases are remarkable with adult onset seizure in the literature.They can also be found incidentally in nonepilepsy patients with or without headache We aimed to present this unique entity with its typical magnetic resonance imaging (MRI) features. Description of the case. A 21-year old man presented with complaint of headache that increased in frequency within the last few months.No relevant seizure or any other signs of note.He was diagnosed with MVNT by imaging andstarted to be followed- up.The repeat MRI 6 months later showed no interval changes. Conclusion. Clinicians should be aware of that it is a do not touch lesion in asymptomatic patients with no need for biopsy or surgery and follow up imaging is sufficient when presented with the typical MRI manifestations. Surgical resection may be required for seizure control and was reported in few cases with no tumoral regrowth in the literature.

A rare cause of adult's epileptic crisis: Infratentorial multinodular and vacuolating neuronal tumor

“…The majority of multinodular and vacuolating neuronal tumors of the supratentorial stage that have been reported in the recent literature were diagnosed based on imaging criteria only [3] . As such, lesions with the same radiological characteristics but located in the posterior fossa have been described without histological confirmation and have been named according to their location, multinodular and vacuolating posterior fossa lesions of unknown significance [4] .…”