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J. bras. patol. med. lab ; 48(2): 135-138, abr. 2012. ilus
Article in Portuguese | LILACS | ID: lil-623373

ABSTRACT

INTRODUÇÃO: O sarcoma de sistema nervoso central (SNC) é uma neoplasia rara, com incidência de 0,1% a 4,3% dos tumores intracranianos. São tumores agressivos com prognóstico reservado e a maioria é tratada com ressecção radical. RELATO: Homem, 29 anos, com episódios de crises convulsivas e diagnóstico de hemorragia intraparenquimatosa. Durante a cirurgia, foi identificada lesão bem delimitada. A histologia demonstrou neoplasia fusocelular com atipias e numerosas mitoses. Os únicos marcadores imuno-histoquímicos positivos foram vimentina e S-100. O diagnóstico foi de sarcoma indiferenciado de alto grau. CONCLUSÃO: No diagnóstico diferencial de sarcomas de SNC, devem-se excluir lesões metastáticas e gliossarcoma.


INTRODUCTION: The central nervous system (CNS) sarcoma is a rare neoplasm with an incidence of 0.1% to 4.3% in intracranial tumors. They are aggressive with poor prognosis, and mostly treated with radical resection. REPORT: 29 year-old male patient with episodes of seizures and diagnosed with intraparenchymal hemorrhage. During the surgery a well-defined lesion was identified. Histology showed a spindle cell neoplasm with atypia and numerous mitoses. The immunohistochemical markers were positive only for vimentin and S-100. The diagnosis was high-grade undifferentiated sarcoma. CONCLUSION: Metastatic lesions and gliosarcoma should be excluded in the differential diagnosis of CNS sarcomas.


Subject(s)
Humans , Male , Adult , Diagnosis, Differential , Sarcoma/diagnosis , Sarcoma/etiology , Central Nervous System/pathology
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