The Benign Impostor: Recognizing a Multinodular and Vacuolating Neuronal Tumor to Prevent Unnecessary Intervention.

A multinodular and vacuolating neuronal tumor (MVNT) is a rare, benign lesion often linked to adult-onset seizures. We report the case of a 36-year-old woman presenting with focal and generalized seizures, preceded by visual aura. MRI revealed classical MVNT features in the left parietal lobe without mass effect, enhancement, or diffusion restriction. Follow-up at 12 months demonstrated lesion stability. Seizure control was achieved with levetiracetam. Recognizing MVNT's distinct radiological features is critical for avoiding unnecessary biopsy or surgical intervention. Conservative management with antiepileptic therapy and scheduled MRI surveillance should be followed in clinically stable cases.