RESUMO
A 55 year old male patient was operated on for a massive and vascular acoustic neurinoma in a sitting position. The tumor was completely excised. Post-operatively, the patient developed irritability and clinical features suggestive of contralateral cavernous sinus thrombosis. CT scan showed air within the dural walls of the cavernous sinus on the side of surgery. However, there was no radiological evidence of cavernous sinus thrombosis on the contralateral side. Cavernous sinus thrombosis as a post-surgery complication has not been reported. Air within the dural confines of the cavernous sinus has also not been observed or radiologically recorded in the literature.
Assuntos
Seio Cavernoso , Embolia Aérea/etiologia , Humanos , Masculino , Pessoa de Meia-Idade , Neuroma Acústico/cirurgia , Procedimentos Neurocirúrgicos/efeitos adversos , Trombose dos Seios Intracranianos/etiologiaRESUMO
A rare case of primary malignant melanoma in the cerebello-pontine angle, in a 17 year old girl is presented. The patient presented with one month history of headache, diplopia, facial asymmetry and ataxia. The computerised tomography (CT) scan and magnetic resonance imaging (MRI) revealed a large cerebello-pontine angle mass with features suggestive of a melanoma. The typical black coloured, solid and vascular melanoma was excised completely. Cerebello-pontine angle melanoma are extremely rare tumours with dismal long term outcome in majority of these cases.
Assuntos
Adolescente , Neoplasias Encefálicas/diagnóstico , Ângulo Cerebelopontino , Feminino , Humanos , Imageamento por Ressonância Magnética , Melanoma/diagnóstico , Tomografia Computadorizada por Raios XRESUMO
Three rare cases of stenosis of spinal canal at the level of atlas associated with atlantoaxial dislocation are presented. An atlantoaxial lateral mass fixation with plate and screws after posterior midline bony decompression was successfully performed in these cases.
Assuntos
Adulto , Idoso , Articulação Atlantoaxial/fisiopatologia , Placas Ósseas , Parafusos Ósseos , Criança , Luxações Articulares/complicações , Humanos , Ílio/transplante , Instabilidade Articular/fisiopatologia , Masculino , Compressão da Medula Espinal/etiologia , Estenose Espinal/complicaçõesRESUMO
An unusual complication following a craniotomy is reported. The free bone flap migrated over the adjacent bone four weeks following surgery and needed operative readjustment. The probable causes for such a complication are analysed and discussed.