[Recurrent hematuria in children: study of 250 cases]. / Hematúria recorrente na infância: estudo de 250 casos.

In order to analyse the etiology of recurrent hematuria in childhood, we studied 250 children, referred to our Service (age: 6 mo-17 ys; 102 female and 148 male). They were submitted to the following protocol: urine analyses, uroculture, serum total and fraction complement, electrophoresis of hemoglobin, serum creatinine, BUN, 24h urinary calcium, uric acid and protein, oral calcium load test in children with hypercalciuria (UCa greater than 4mg/kg/day). Radiological evaluation and renal percutaneous biopsy was performed when necessary. The following diagnostic distribution was obtained: Alport syndrome, 19; Berger disease, 15; other glomerulopathies, 45; hypercalciuria, 67; uric acid hyperexcretion, 10; nephrolithiasis, 27; urinary tract infection, 14; renal malformation, 8; no diagnosis, 43. Based in these results, we conclude that appropriate investigation on recurrent hematuria, leads to determination of etiology in over 80% of cases.

Cistinose na infancia. Apresentacao de tres casos. / Cystinosis in childhood. Report of 3 cases

A cistinose, alteracao metabolica rara (f=1/40.000), e a principal causa de sindrome de De Toni-Debre-Fanconi na infancia. Os autores apresentam o estudo de tres criancas, todas brancas, do sexo feminino, portadoras de cistinose nefropatica que se manifestou clinicamente como sindrome de Fanconi. O material para estudo histologico foi obtido por necropsia, no primeiro caso; por biopsia renal, no segundo; e puncao de medula ossea, na terceira crianca. Em todos os tecidos houve deposicao de cristais de cistina, em grande quantidade

Emprego da metilprednisolona em glomerulopatias na infancia. Estudo de vinte e seis casos. / Methylprednisolone in the treatment of glomerulopathies in childhood. Report of twenty-six cases

Os autores tentam avaliar as vantagens da metilprednisolona no tratamento das glomerulopatias. Os efeitos do medicamento foram estudados em 26 criancas com glomerulopatias, diagnosticadas por biopsia renal, estando todas descompensadas na ocasiao. A observacao destes primeiros casos deixou a impressao de que alguns pacientes realmente mostraram melhoras com o uso da droga

[Morphology of the epithelial cells of the epididymal duct of the south american oppossum (Didelphis azarae) (author's transl)]. / Morphologie des céllules épithéliales due canal de l'épididyme de l'opossum (sarigue) sud-américain (Didelphis azarae).

5 cellular types were identified in the epithelium lining the epididymal duct of the opossum (Didelphis azarae): principal cells, clear, basal, apical and intraepithelial lymphocytes, similar to the epididymal duct of the rat. Morphological aspects of these cells are described in the present paper, at the optical microscope level.