Ada I Rivera

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The value of the ultrastructural study of the renal biopsy was investigated in a series of pediatric patients with nephrotic syndrome. Forty-eight cases of renal biopsies with clinical data were reviewed and divided into diagnostic groups. The contribution of electron microscopy to the final diagnosis was graded as essential-diagnosis could not be reached(More)
The diagnosis of congenital nephrotic syndrome (NS) is a challenge both for clinicians and for pathologists. We observed three cases in a series of 50 children with NS nonresponsive to therapy, corresponding to one case each of minimal change disease, Finnish-type glomerulopathy, and diffuse mesangial sclerosis--two histopathologic studies were performed in(More)
We report a case of Waldenström macroglobulinemia with trisomy 4 as the sole cytogenetic abnormality. Trisomy 4 has been reported previously in Waldenström macroglobulinemia, but only in conjunction with multiple chromosomal aberrations. Trisomy 4 has been reported in other hematologic malignancies including acute myeloid and lymphoid leukemias.
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