Sagittal T2-weighted magnetic resonance image (0.5 T) of a Pug (9 months, female) with necrotizing meningoencephalitis (NME). Caudal transtentorial herniation of the occipital lobes and foramen magnum herniation of the cerebellum caused by significant swelling of the prosencephalon. This may explain the sudden death of some Pugs with NME.