MAGNETIC RESONANCE IMAGING FEATURES OF CEREBELLAR VERMIS MEDULLOBLASTOMA IN AN ADULT CANINE PATIENT
AuthorPatsikas, M.; Jakovljevic, S.; Papadopoulou, P.; Polizopoulou, Z.; Kazakos, G.; Tontis, D.; Soultani, C.; Charitanti, A.; Chrissogonidis, I.; Tsifountoudis, I.
A seven-year-old, not-castrated male, Airedale Terrier presented with a history of ataxia and intention tremor of the head of three-week duration. Neurologic examination demonstrated severe hypermetria, intention tremor of the head and a bilateral menace response deficit. Magnetic resonance imaging revealed a well demarcated cerebellar vermis mass, hypointense on T1-weighted images, hyperintense on T2-weighted images, with multiple small foci of high signal similar to that of CSF. Foci dispersed in the mass creating a speckled appearance. Homogeneous faint, wispy post-contrast enhancement of the mass was noted; as a result the tumor became isointense to gray matter and was not clearly evident in post contrast images. The histopathological diagnosis of the excised tumor was cerebellar medulloblastoma.