24 research outputs found
Short-term Histopathology Effects of Gamma Knife Radiosurgery on a Vestibular Schwannoma
Inhibition of angiogenesis induced by cerebral arteriovenous malformations using Gamma Knife irradiation
Stereotactic Radiosurgery for Unruptured Versus Ruptured Pediatric Brain Arteriovenous Malformations
Evidence for endothelial‐to‐mesenchymal transition in human brain arteriovenous malformations
Development of Central Precocious Puberty After Surgical Resection in a Boy with Craniopharyngioma: Case Report
Early metabolic changes in metastatic brain tumors after Gamma Knife radiosurgery:1H-MRS study
Stereotactic radiosurgery for deep-seated cavernous malformations: a move toward more active, early intervention
Craniofaringiomas: achados clínicos, epidemiológicos e anatomopatológicos de 25 casos Craniopharyngiomas: clinical, epidemiological and pathological findings of 25 cases
Relatamos os achados clínicos, epidemiológicos e anatomopatológicos de 25 casos de craniofaringiomas. Dos 25 pacientes analisados, 14 ocorreram em pacientes do sexo masculino e 11 em pacientes femininos. As idades variaram de 3 a 64 anos, com média de 30,52 anos. Quanto à localização, 12 casos foram supra-selares, 10 ocorreram em região selar, sendo que 8 apresentaram extensão supra-selar, dois localizaram-se em lobo frontal e 1 em região ponto-cerebelar. Os sinais e sintomas observados incluiram alterações visuais (72% dos pacientes), cefaléia (68%), vômitos (40%) e edema de papila (24%), com período de evolução variando de 18 dias a 60 meses, com média de 11,66 meses. Treze pacientes foram submetidos a ressecção cirúrgica parcial, 11 a exérese total e 1 a ressecção parcial associada a quimioterapia adjuvante. Evidenciou-se taxa de recidiva tumoral total de 48%. Sete recidivas tumorais ocorreram nos pacientes submetidos apenas a exérese parcial, quatro nos pacientes submetidos a tumorectomia total e 1 no submetido a tratamento cirúrgico associado a quimioterapia. Estes achados aproximam-se dos encontrados na literatura, corroborando para a compreensão do comportamento biológico deste tumor e apontando a extensão do tumor residual como único fator prognóstico para recidiva desta neoplasia.<br>We report the clinical and pathological findings of 25 cases of craniopharyngiomas. Fourteen patients were males and 11 were females. The ages ranged between 3 and 64 years, with a mean of 30.52 years. The symptoms reflected the growth and topography of the tumours; visual disorders (72%), headache (68%), vomits (40%) and papilledema (24%) were the most frequent symptoms. Twelve cases were suprasellar; 10 tumours arose from sellar region, from which 8 presented suprasellar extension; frontal lobe (n=2) and ponto cererebellar angle (n=1) were also affected. Eleven patients undergone total resection of the tumor and 14 were submitted to partial resection, from which 1 received adjuvant chemotherapy. The overall recurrence rate was 48%. Eight recurrences were observed in the patients submitted to partial resection and 4 in which total resection were performed. These results are similar with the literature, corroborating to the extension of residual tumour after the surgical resection as the main prognostic factor for this neoplasm