RESUMO
Computerized Axial Tomography (CAT) has proved extremely useful for the diagnosis of cerebral cysticercosis. The calcified small, multiple, and scattered cysts provide a typical image on CAT. The collection of non-calcified cysts in the subarachnoid spaces (racemose form) or in the ventricles may produce areas of low density similar to that of the cerebrospinal fluid. The dilatation of the ventricular system, extreme degrees of hydrocephalus, areas of cerebral atrophy, and other related changes induced by the cysts in the subarachnoid spaces are also clearly shown in the CAT. Four personal cases are reported.
Assuntos
Encefalopatias/diagnóstico por imagem , Cisticercose/diagnóstico por imagem , Tomografia Computadorizada por Raios X , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
The results of examination of 100 patients with intracranial tumors by means of computer axial tomography are discussed. It is shown that the method is highly effective in cases with different intracranial tumors, providing for a more precise determination of their character and localization.
Assuntos
Neoplasias Encefálicas/diagnóstico por imagem , Tomografia Computadorizada por Raios X/métodos , Astrocitoma/diagnóstico por imagem , Tronco Encefálico , Glioma/diagnóstico por imagem , Hemangiossarcoma/diagnóstico por imagem , Humanos , Meduloblastoma/diagnóstico por imagem , Meningioma/diagnóstico por imagem , Metástase Neoplásica , Neurilemoma/diagnóstico por imagem , Papiloma/diagnóstico por imagem , Neoplasias do Sistema Nervoso Periférico/diagnóstico por imagem , Pinealoma/diagnóstico por imagem , Sarcoma/diagnóstico por imagem , Nervo VestibulococlearRESUMO
Sixty-five personal cases of cerebellar hemangioblastomas plus others from the literature making a total of 539 cases are reviewed regarding their clinical, biological and surgical aspects. A variable genetic blastomatous growth potential seems to determine the individual biological behavior of these tumors. Retinal angiomatosis, family incidence, multicentric tumors in the central nervous system and in other organs, and some of the so-called recurrences, are considered within this concept.
Assuntos
Neoplasias Cerebelares , Hemangiossarcoma , Adulto , Fatores Etários , Neoplasias Cerebelares/patologia , Neoplasias Cerebelares/cirurgia , Eritrócitos/patologia , Feminino , Hemangiossarcoma/patologia , Hemangiossarcoma/cirurgia , Humanos , Masculino , Pessoa de Meia-Idade , Recidiva Local de Neoplasia , Fatores Sexuais , Fatores de TempoRESUMO
A case is presented in which puncture of the pleura and hydrothorax occurred during placement of a ventriculoperitoneal shunt. Treatment of this complication is outlined.
Assuntos
Derivações do Líquido Cefalorraquidiano/efeitos adversos , Hidrotórax/etiologia , Cateterismo/efeitos adversos , Humanos , Hidrocefalia/cirurgia , Hidrotórax/diagnóstico por imagem , Lactente , Masculino , Cavidade Peritoneal , Complicações Pós-Operatórias/cirurgia , RadiografiaAssuntos
Neoplasias Cerebelares , Hemangiossarcoma , Adulto , Feminino , Humanos , Masculino , Pessoa de Meia-IdadeRESUMO
Tumours of the pineal region and posterior part of the third ventricle are rare in European and American series (0.5 to 1% of space-occupying lesions). Personal experience is usually limited and thus cooperative studies or critical reviews of reported cases are necessary to establish therapeutic criteria. We have studied 50 cases from our own material of more than 5,000 brain tumours and intracranial space-occupying lesions operated on during the last 30 years. Another 6 verified cases from Dr. F. Isamat, and more than 200 verified tumours from the literature are added. Histological distribution shows that 24% of the tumours in this locality are benign. The different surgical techniques fro reaching the pineal region are reviewed. The results of palliative operations, or partial removals together with radiotherapy, and total removals are presented in 200 verified cases (Table 1), as well as the results obtained by the different surgical approaches (Table 2). Finally, some conclusions are reached regarding the surgical management of these tumours. More than two thirds are radiosensitive, and in about 50 to 70% good results may be obtained with palliative operations and radiotherapy. The remainder of the pineal tumours (about 20%) should be treated by a direct surgical approach. Recent technical improvements and the use of the surgical microscope have reduced the mortality of pineal surgery and allow verification of the histological nature of the tumour in order to establish more rational treatment.
Assuntos
Neoplasias Encefálicas/cirurgia , Glândula Pineal , Neoplasias Encefálicas/radioterapia , Neoplasias do Ventrículo Cerebral/cirurgia , Cisto Epidérmico/cirurgia , Humanos , Pressão Intracraniana , Meningioma/cirurgia , Métodos , Glândula Pineal/cirurgia , Pinealoma/cirurgia , Teratoma/cirurgiaRESUMO
IgG from immunized rabbits was labelled with Fluorescein Isothiocyanate, and conjugated in vitro with human and with rat glioblastoma. After absorption of the antisera with normal brain and liver, a heavy concentration of antibody was found in the rat tumour cells. A great amount of antibody was also found in the human neoplastic cells. The incorporation of this antibody in glioma cells of different rats developing new tumours indicates that transplantation antigens of the H-2 type are not the only ones capable of inducing specific antibody attachment.