The glioneural tumor is a rare lesion of the 4th ventricle of slow growth, that affects young adults and predilection for females. Clinically presents with headache, ataxia, or symptoms related to obstructive hydrocephalus, may be present in up to 60% of cases. Secondary symptoms are nausea and dizziness. Its preferred location cerebellar midline around the fourth ventricle (posterior fossa), but seldom in the pineal region, cerebellopontine angle, brain hemispheres.
MRI imaging is an excellent imaging method for identification of brain lesions, for this tumor type is used preferentially weighted sequences T1, T2, T2 * GRE or SWI and using means of intravenous contrast. They may be as solid tumor preferably in the fourth ventricle, tending to hyperintensity and heterogeneity in T2 and iso / hypointense on T1, with emphasis varying the contrast medium, and may have bleeding that is best detected in the sequence T2* GRE or SWI.
This case was kindly provided by Dr Rodrigo Dias Duarte.