Hipoplasia isolada do ventriculo direito. Relato de dois casos / Single hypoplasia of the right ventricle.Report of 2 cases

A hipoplasia isolada do ventriculo direito e uma malformacao congenita na qual a diminuicao da camara ventricular se faz a expensas da zona trabeculada desta cavidade, sendo as valvas tricuspide e pulmonar, normais. O quadro clinico depende do grau da hipoplasia e da presenca de uma comunicacao interatrial. Enquanto no caso 1, representado por uma crianca de 3 anos e 9 meses, as caracteristicas clinicas, eletrocardiograficas e radiologicas foram bastante semelhantes as observadas na atresia tricuspide, no caso 2, uma mulher de 46 anos, foram muito sugestivas de uma sindrome de restricao diastolica secundaria a endomiocardiofibrose.Observou-se que na forma infantil, com septo atrial aberto o diagnostico pode ser feito em vida, atraves do estudo ecocardiografico, hemodinamico e cineangiocardiografico, enquanto que a forma adulta, em especial a com septo atrial fechado, o dignostico so pode ser feito com exatidao atraves do estudo anatomopatologico

Ependymal astrocytoma: subependyoma or subependymal glomerate astrocytoma.

The histological study of four cases and one by electron microscopy of subependyomomas allowed us to obtain morphostructural characteristics of ependymocytes and astrocytes. Comparing these findings to those of the present day literature, we propose to name these tumours ependymal astrocytomas.

Ependymal astrocytoma. Subependymoma or subependymal glomerate astrocytoma.

O estudo histologico de quatro casos de subependimoma, um deles pela microscopia eletronica, permitiu-nos obter caracteristicas morfoestruturais de ependimocitos e astrocitos.Comparando estes achados com os da literatura, propomos denominar tais neoplasias como ependimoastrocitomas

[Glomerular immunopathology: comparative study with immunofluorescence and immunoperoxidase (author's transl)]. / Imunopatologia glomerular: estudo comparativo entre imunofluoresência e imunoperoxidase.

In order to evaluate the reliability of immunoperoxidase technic (IP) for immuno-deposits in frozen renal tissue, a single blind study was done comparing it with immunofluorescent technic (IF). Fifty renal biopsies were studied. Ten there were no deposits by IF or IP. In 40 of them the results showed the same specificity and greater intensity for IP. There were 25 cases with IgG, 22 with IgM, 9 with IgA, 3 with Clq, 27 with C3 and 3 with HbsAg. We concluded that IP can be used in place of IF for detection of the immune deposits in renal biopsies and that it offers an easier observation than the later.

Subarachnoide hemorrhage due to S. mansoni. A rare etiology.

A case of schistosomiasis is described in a native of Rio de Janeiro, where, apart from infection of the intestines, a meningitic granulomatous reaction was provoked around eggs. Intracerebral and subsequently subarachnoid hemorrhage occurred. The mode of infection is disucssed.