The pauci-immune crescentic glomerulonephritis (PICGN) is generally associated with small-vessel vasculitis with a few reported cases associated with other autoimmune diseases such as Systemic Lupus Erythematosus (SLE). We present the case of a female 34-year-old patient with acute kidney injury symptoms with indication for renal replacement therapy in the context of clinical SLE diagnosis. A kidney biopsy was conducted and it was found that most glomeruli showed some segmental sclerosis with synechia to the Bowman's capsule. 67% of the glomeruli had fibroepithelial crescents. Moreover, the interstitial space had a moderate lymphomononuclear infiltration and mild fibrosis. In the arterioles, there were walls thickened by subintimal sclerosis. Direct immunofluorescence detected limited IgM and C3 deposits in capillary loops and negative mensangium for IgG, IgA and C1q. A therapy using cor...

Introduction. Percutaneous renal biopsy is one of the procedures that has contributed most to the knowledge of kidney diseases. Our country does not have updated data on this specific topic. Our objective is to report the proportion of different types of primary and secondary glomerulopathies in renal biopsies performed by the Nephrology Service of the National Hospital Dos de Mayo from 2007 to 2016. Methods. Retrospective case series with review of records clinics in the Nephrology Service of the Dos de Mayo National Hospital. The renal biopsies registry of the Nephrology Department was taken from 2007 to 2016. The results of the reports of renal biopsies were reviewed, the results are reported in proportions. Results. 139 kidney biopsies were recorded. In relation to primary glomerulopathies, the most frequent cause reported was focal and segmental glomerulonephritis, then membranoprol...