Objective: The authors show their experience with brainstem cavernomas, comparing their data with the ones of a literature review. Methods: From 1998 to 2009, 13 patients harboring brainstem cavernomas underwent surgical resection. All plain films, medical records and images were reviewed in order to sample the most important data regarding epidemiology, clinical picture, radiological findings and surgical outcomes, as well as main complications. Results: The mean age was 42.4 years (ranging from 19 to 70). No predominant gender: male-to-female ratio, 6:7. Pontine cases were more frequent. Magnetic resonance imaging was used as the imaging method to diagnose cavernomas in all cases. The mean follow-up was 71.3 months (range of 1 to 138 months). Clinical presentation was a single cranial nerve deficit, VIII paresis, tinnitus and hearing loss (69.2%). All 13 patients underwent resection of the symptomatic brainstem cavernoma. Complete removal was accomplished in 11 patients. Morbidity and mortality were 15.3 and 7.6%, respectively. Conclusions: Cavernomas can be resected safely with optimal surgical approach (feasible entry zone) and microsurgical techniques, and the goal is to remove all lesions with no cranial nerves impairment. Keywords

RESUMO: O diagnóstico da neurocisticercose através da tomografia axial computadorizada (TAC) de cránio é seguro, confiável e nao invasivo, possuindo sensibilidade superior às reações imunológicas no LCR e identificando as várias fases de evolução da doença. Nosso objetivo foi estudar as caracferlsticas da população em que se diagnosticou neurocisticercose no Instituto de Tomografia Axial Computadorizada (I. T.A. C.) de Londrina, bem como os aspectos tomográficos encontrados. Foram revisadas todas as TAC de cránio realizadas no /. T.A. C. de Londrina entre setembro de 1986 e maio de 1994, sendo analisados os exames de pacientes em que se diagnosticou neurocisticercose. Estudou-se a presença de calcificaç{Jes, cistos ou vesfculas, granulomas e hidrocefalia. Analisou se também a idade, sexo e procedência de zona rural ou urbana. Houve diagn6stico de neurocisticercose em 2030 pacientes. A maioria (47,6%) possula idade entre 20 e 40 anos; 886 (43,7%) eram do sexo masculino, e 1144 (56,3%) do sexo feminino. Apenas 85 pacientes procediam de zona rural. Dentre os achados tomográficos, houve 983 calcificações únicas (48,4%), 873 calcificaç{Jes múltiplas (43,0%), 199 cistos ou vesículas (9,8%) e 121 granulomas

A case of calvarial meningeoma in a 42 year old female is reported. Arising from the inner table of the skull, it projected a extracranial mass without neurological simptomatology. The surgical procedure give good results. Some aspects of the literature and radiologics finds are commented. The infrequency of this pathology is resulted.

Constitui propósito deste trabalho a apresentação de caso de tumor de fossa posterior em criança, com expansão extracraniana. (Fig. 1).

Colorectal lipomatosis is a rare condition which can cause considerable diagnostic difficulty. We describe a case in which the patient presented with rectal prolapse of unusual appearance.