RESUMO
A cervical location for an extradural cavernous hemangioma is exceedingly rare. We present the MRI findings of such a case in a 19-year-old female.
Assuntos
Neoplasias Epidurais/diagnóstico , Hemangioma Cavernoso/diagnóstico , Adulto , Feminino , Humanos , Imageamento por Ressonância MagnéticaRESUMO
A 10-year-old boy had a 4-month history of blurred vision and severe occipital headaches. Visual acuity was diminished bilaterally, but ophthalmoscopy was normal, and the correct diagnosis was delayed until inferior bitemporal defects were found. Cranial CT scans and vertebral angiograms demonstrated a giant aneurysm at the bifurcation of the basilar artery. Bitemporal hemianopsia occurring in children is usually due to craniopharyngioma or chiasmal glioma. To the best of our knowledge, this is the first report of a patient whose chiasmal syndrome was due to a basilar artery aneurysm and whose visual deficit improved after occlusion of the aneurysm.
Assuntos
Artéria Basilar , Hemianopsia/etiologia , Aneurisma Intracraniano/complicações , Artéria Basilar/diagnóstico por imagem , Artéria Basilar/cirurgia , Criança , Diagnóstico Diferencial , Hemianopsia/diagnóstico , Humanos , Aneurisma Intracraniano/diagnóstico , Aneurisma Intracraniano/cirurgia , Masculino , Tomografia Computadorizada por Raios X , Acuidade Visual , Campos VisuaisRESUMO
An unusual primary intracerebral tumor with combined features of chondrosarcoma and glioblastoma multiforme is presented. Glial elements showing a spectrum of hyperplastic and neoplastic changes were intermingled with sarcomatous areas, similar to that recently described by Lalitha and Rubinstein as "sarcoglioma." Many vessels in the gliomatous regions contained proliferating endothelial cells with marked cytologic abnormalities. Although no direct extension out of the vessel wall was conclusively identified, the possibility of sarcomatous change could not be completely excluded. We conclude that, in this case, we could not establish whether the sarcoma was primary and the glioma secondary ("sarcoglioma") or vice versa ("gliosarcoma"), nor could we rule out that the two components originated from the same ancestral pluripotential cells.
Assuntos
Neoplasias Encefálicas/ultraestrutura , Condrossarcoma/ultraestrutura , Glioblastoma/ultraestrutura , Glioma/ultraestrutura , Encéfalo/ultraestrutura , Transformação Celular Neoplásica/ultraestrutura , Endotélio/ultraestrutura , Humanos , Masculino , Pessoa de Meia-Idade , Neuroglia/ultraestruturaRESUMO
A patient with delayed neurologic injury secondary to high-tension current, with recovery, is presented. The mechanism of injury and pathophysiology are felt to be either vascular or direct damage to the spinal cord. This case demonstrates the need for frequent, repeated neurologic examinations of electrical injury victims. The cause of delay in onset of neurologic injury and the mechanism of recovery need further experimental study.
