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We report here about two novel tumours classified as extraventricular neurocytomas (EVN) using DNA‐methylation profiling, associated with NTRK2 fusions instead of the usual FGFR1 alterations so far attributed to this tumoural entity. We present the second detailed case of an intraventricular presentation in the MC EVN. Our findings broaden the spectrum of MC EVN and have implications in terms of diagnosis,...
Aims
We searched for recurrent pathological features and molecular alterations in a retrospective series of 72 low‐grade epilepsy‐associated neuroepithelial tumours (LEATs) with a prominent oligodendroglioma‐like component, in order to classify them according to the 2021 World Health Organization (WHO) classification of central nervous system (CNS) tumours.
Methods
Centralised pathological examination...