RESUMO
A rare case of a cavernous haemangioma in the interpeduncular cistern is reported. The patient, forty-five year old male presented with excruciating left sided trigeminal neuralgia and diplopia for the past one year. Examination revealed left third and fifth nerve paresis. Magnetic resonance imaging showed a well-defined, lobulated tumour in the interpeduncular cistern. The tumour was totally excised through a subtemporal route. Histology of the tumour revealed a cavernous haemangioma. Extracerebral location for a cavernous haemangioma is rare. An interpeduncular cavernous haemangioma has never been reported earlier in literature. The clinical and radiological features are discussed and relevant literature is briefly reviewed.
Assuntos
Seio Cavernoso/patologia , Neoplasias do Sistema Nervoso Central/complicações , Diagnóstico Diferencial , Hemangioma Cavernoso do Sistema Nervoso Central/complicações , Humanos , Imageamento por Ressonância Magnética , Masculino , Pessoa de Meia-Idade , Neuralgia do Trigêmeo/etiologiaRESUMO
A rare case of a diffuse calvarial meningioma in a sixty-three year-old female is reported. The patient presented with headache, painful proptosis and chemosis of the left eye. Imaging showed that the frontoparietal calvarium on both sides and the left orbital roof were thickened. The thickened bone showed patchy rarefaction. In relationship to the thickened bone, there was an enhancing en-plaque meningioma. The tumour extended on to the superolateral aspect of the left orbit and resulted in proptosis. Excision of the left frontoparietal calvarium and the orbital tumour was performed. The management of diffuse calvarial meningioma is discussed and the relevant literature is briefly reviewed.
Assuntos
Diagnóstico Diferencial , Feminino , Humanos , Meningioma/patologia , Pessoa de Meia-Idade , Fotomicrografia , Neoplasias Cranianas/patologia , Tomografia Computadorizada por Raios XRESUMO
An extremely unusual case of a cystic schwannoma in the region of the inferior vermis and posterior to the fourth ventricle in a fifteen year old boy is reported. The cystic tumour caused partial obstruction to the outflow of cerebrospinal fluid from fourth ventricle and resulted in development of supratentorial hydrocephalus. On investigations, the schwannoma simulated a Dandy-Walker cyst. The boy presented with symptoms of increased intracranial pressure. On surgery, the lesion was not arising from any cranial nerve, nor was it attached to brain parenchyma, blood vessel or to the dura. The possible histogenesis of the cystic schwannoma in a rare location is discussed.
Assuntos
Adolescente , Neoplasias Cerebelares/diagnóstico por imagem , Ventriculografia Cerebral , Fossa Craniana Posterior/diagnóstico por imagem , Síndrome de Dandy-Walker/diagnóstico por imagem , Diagnóstico Diferencial , Humanos , Masculino , Neurilemoma/diagnóstico por imagemRESUMO
An unusual astrocytoma occurring in different anatomical compartments of the brain is reported. The child was operated upon for a cerebellar astrocytoma when he was eight-and-half years old. Seven years later, he was operated for a cerebral astrocytoma. The growth of the similar tumours at these two sites is analysed and literature on the subject is reviewed. The concept of multicentricity is emphasized.