Schwanoma intracerebral talmico: relato de caso

ABSTRACT - The intracranial schwannomas cover about 8% of all the brain tumors, although, those localizedinside the encephalic parenchyma are rare only 55 cases being reported in the literature. The histhopatologicdiagnosis is based on the cellular type and arrangement common to the nervous sheat tumors, theimmunohistochemical findings (GFAP, S-100 protein, EMA) and electronmicroscopic findings as well. Theclinical presentation related to the intraparenchimatous schwannoma is variable, depending on its localization,the image diagnosis does not show any typical aspect. The surgical treatment is curative once a completeextirpation is obtained. These tumors are benign but one case reported presented malignant signs. We presenta patient that had a thalamic schwannoma with histological confirmation. We found no case with thislocalization in the literature.KEY WORDS: intracerebral schwannoma, thalamus. Disciplina de Neurocirurgia da Escola Paulista de Medicima da Universidade Federal de Sao Paulo (UNIFESP-EPM), Sao Paulo SP, Brasil: