Frequency of suspected cases of neurocysticercosis detected by computed skull tomography in Santa Maria, RS, Brazil

Due to the lack of studies about neurocysticercosis in the South of Brazil, an investigation was conducted to determine the percentage of suspected cases of neurocysticercosis in computed tomography diagnoses in Santa Maria, RS, from January 1997 to December 1998. Of 6300 computed tomographies (CT) of the skull performed at the private Hospital de Caridade Astrogildo de Azevedo, 80, i.e., 1.27 percent were suspected of neurocysticercosis. Fifty were women (62.5 percent) and 30 were men (37.5 percent). The most frequent radiological manifestation indicating neurocysticercosis was the presence of calcifications (isolated or associated), with a 95 percent rate (76 cases), while the presence of hypodense lesions reached a 5 percent rate (4 cases). After routine analysis, each CT was evaluated again and the suspected cases were confirmed. The percentage of suspected cases of neurocysticercosis detected by CT in the present study carried out in Santa Maria was considered low (1.27 percent). This can be explained by the fact that tomography is not accessible to the economically underprivileged population of Santa Maria. We hope that the present study can alert the population and the professionals to the fact that neurocysticercosis is a more frequent disease than indicated by the few diagnoses made

A radiografia do tórax na detecçäo da neoplasia mamária / Thoracic radiography in detection of breast neoplasm

Foram revisadas radiografias do tórax de 25 pacientes na tentativa de encontrar evidências que alertassem para a presença de neoplasias mamárias já diagnosticadas por outros métodos. As alteraçöes mamárias visíveis na radiografia de tórax näo se mostraram sensíveis para a suspeiçäo de neoplasia na maioria dos casos

Radiologia intervencionista na hipertensäo porta / Interventional radiology procedures in portal vein hypertension

De um grupo de 150 pacientes, selecionados aqueles que foram submetidos a embolizaçäo esplênica parcial e a embolizaçäo de varizes gastroesofágicas por via trans-hepática. Estes métodos podem ser eficazes para o controle sintomático de situaçöes específicas

Métodos radiológicos e ultra-sonográficos na avaliaçäo das lesöes renais expansivas / Radiological and ultrasonic methods in the evaluation of expansive renal lesions

Foram comparados os resultados radiológicos da nefrotomografia (Nt) e do Ultra-Son (US) em 30 casos de lesäo renal expansiva (7 tumores e 23 cistos). Como critério para diagnóstico de cisto renal, foram utilizados os sinais de lesäo hipocaptante, interface bem definida e parede fina na Nt e imagem esférica anecóica, paredes lisas com reforço posterior no ultra-som. A associaçäo destes dois exames diminuiu a necessidade de angiografia renal (Ag) e tomografia axial computadorizada (CT)