Navegando por Palavras-chave "malformação arteriovenosa"

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    Associação de malformação vascular e gliomas: estudo de quatro casos
    (Academia Brasileira de Neurologia - ABNEURO, 2003-06-01) Borges, Lia Raquel R. [UNIFESP]; Malheiros, Suzana Maria Fleury [UNIFESP]; Pelaez, Maria Paula [UNIFESP]; Stávale, João Norberto [UNIFESP]; Santos, Adrialdo J. [UNIFESP]; Carrete Junior, Henrique [UNIFESP]; Nogueira, Roberto Gomes [UNIFESP]; Ferraz, Fernando A. P. [UNIFESP]; Gabbai, Alberto Alain [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    We reviewed the clinical presentation, imaging and histopathologic findings in 4 patients with the diagnosis of arteriovenous malformation associated with glioma that were operated on from 1991 to 2000 in our institution. Four patients (2 males; age between 15 and 52 years) presented with progressive headache with clinical evidence of intracranial hypertension (in 3) and partial seizures (in 1). CT scan showed a brain tumor without any detectable pathologic vessels. Histologic examination revealed astrocytic tumors associated with arteriovenous malformation. No patient presented the vascular component intermixed with the tumor. The arteriovenous-glioma association is rare and must be identified by a clear demarcation between the malformation and the tumor.
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    Tratamento cirúrgico das patologias vasculares cerebrais nos pacientes epilépticos
    (Academia Brasileira de Neurologia - ABNEURO, 1997-09-01) Rassi-neto, Aziz [UNIFESP]; Ribeiro, Paulo R. Jubé [UNIFESP]; Prates, Marcello Americano [UNIFESP]; Muszkat, Mauro [UNIFESP]; Campos, Carlos José Reis De [UNIFESP]; Ferraz, Fernando A. P. [UNIFESP]; Universidade Federal de São Paulo (UNIFESP)
    Surgery of arteriovenous malformations (AVM) and of cavernous angiomas (cavernoma) in the majority of cases is indicated subsequently to episodes of bleeding. With the development of techniques for diagnosis and surgery for epilepsy of difficult control, indication for surgery of these vascular lesions has become greater. We present nine patients with cerebral vascular lesions and very frequent crises in spite of adequate clinical treatment. Ages ranged from 12 to 42 years with an average of 25 years; there was a prevalence of the male sex (2:1). Surgery consisted of exeresis of the lesion in all cases and in four there was also resection of the perilesional irritative area shown by electrocorticography. The pathologic study of lesions showed five cases of cavernoma, three cases of AVM, and one case of venous angioma. As to localization, we observed three lesions in the temporal lobe, four in the frontal, and two in the parietal region. Outpatient follow-up showed a reduction in crises in all of the patients, and seven evolved seizure free following surgery.