RESUMO
Sarcoidosis is a systemic disease characterized by granulomatous inflammation. Pulmonary and lymphatic granulomatous involvement are common.We present a rare case report of involvement of the central nervous system affecting the ocular region and mimicking optic nerve sheath meningioma. We report the case of a 79-year-old female patient with progressive visual impairment with an evolution of 4 years. Amagnetic resonance imaging scan of the cranium with gadolinium and intense homogeneous contrast enhancement revealed an expansive lesion in the right optic nerve, at the height of the optic canal. The patient was submitted to the neurosurgical approach with lesion biopsy, which showed sarcoidosis of the central nervous system. Due to the rarity of central nervous system involvement, the diagnosis of this pathologymay unfortunately be postponed. The present article aims to elucidate this pathology as a differential diagnosis of retro-orbital tumors.
Assuntos
Humanos , Feminino , Idoso , Sarcoidose/diagnóstico , Neoplasias do Nervo Óptico/cirurgia , Neoplasias Meníngeas/cirurgia , Meningioma/cirurgia , Fossa Craniana Anterior/cirurgia , Diagnóstico Diferencial , Neoplasias Meníngeas/diagnóstico por imagem , Meningioma/patologia , Meningioma/diagnóstico por imagemRESUMO
No abstract available.
Assuntos
Humanos , Relação Dose-Resposta à Radiação , Glaucoma Neovascular/etiologia , Glioma/cirurgia , Neoplasias do Nervo Óptico/cirurgia , Radiocirurgia/efeitos adversosRESUMO
A 68-year-old man presented with a history of a right optic glioma. Eighteen months ago he underwent a lateral orbitotomy at another institution for removal of an optic nerve mass. At that time histology revealed that the tumor was an optic nerve glioma with a pilocytic pattern. No further treatment was instituted and one year after surgery he noticed that his right eye was proptotic again. Magnetic resonance imaging of the orbit showed that his right orbit was almost completely filled with a mass which extended through the optic canal to the chiasma. The tumor was excised by a combined neurosurgical and orbital approach. Histology proved that the neoplasm was a low grade pilocytic astrocytoma of the optic nerve.
Paciente masculino de 68 anos com história de orbitotomia lateral para exérese de tumor no nervo óptico 18 meses antes em outro serviço. O exame histológico demonstrou glioma do nervo óptico com padrão pilocítico. Um ano após, observou-se novo episódio de proptose no olho direito. Ressonância nuclear magnética das órbitas mostrou massa preenchendo quase toda a cavidade orbitária direita com extensão pelo canal óptico até o quiasma. Foi realizada exenteração da órbita direita com excisão da porção posterior do tumor via transcraniana pela neurocirurgia e reconstrução orbitária. A histologia confirmou astrocitoma pilocítico de baixo grau do nervo óptico.
Assuntos
Idoso , Humanos , Masculino , Astrocitoma/diagnóstico , Neoplasias do Nervo Óptico/diagnóstico , Astrocitoma/cirurgia , Imageamento por Ressonância Magnética , Estadiamento de Neoplasias , Neoplasias do Nervo Óptico/cirurgia , Tomografia Computadorizada por Raios XRESUMO
Se presentan dos casos de Melanocitoma del nervio óptico, los cuales han permanecido estacionarios en el tiempo, a pesar que en uno de ellos se practicó intervención quirúrgica