Diagnosis of congenital and infantile nephrotic syndromes in renal biopsies in Minas Gerais, Brazil: Six case reports.

Congenital or infantile nephrotic syndromes (CNS/INS) correspond to a heterogeneous group of rare diseases in which glomerular renal dysfunction and proteinuria are prominent. The aim of this study is to present six cases of possible CNS/INS with diagnoses based on clinical findings and especially histological, ultrastructural, and immunohistochemical characteristics of renal biopsies. Four cases are presented with diffuse mesangial sclerosis, one of them possibly part of Denys-Drash syndrome and two cases with CNS probably of the Finnish type in patients between 3 months old and 13 years old.

Prevalence of nephropathies in children and adolescents and alterations in renal biopsies in Minas Gerais, Brazil, from 1996 to 2010.

Renal biopsy is an important method of diagnosis and prognosis in children and adolescents with renal diseases, and there are few studies describing the histopathologic alterations in renal biopsies in these age groups. The aim of this study was to evaluate the incidence of morphologic alterations described in renal biopsies carried out in children and adolescents. Patients aged between 1 month and 18 years were observed from 1996 to 2010 and were separated into 3 age groups: 0 to 6 (group 1, n = 29), 6 to 12 (group 2, n = 31), and 13 to 18 (group 3, n = 77) years.

Cellular fibroma of the ovary with multiloculated macroscopic characteristics: case report.

Ovarian fibroma is the commonest benign tumor of the ovarian stroma. The cellular subtype accounts for around 10% of ovarian fibromatous tumors. The cellular fibroma is a tumor of uncertain malignant potential that may recur or be associated with peritoneal implants.