Congenital porto-systemic shunt: An uncommon cause of membranoproliferative glomerulonephritis Carlos Santos-Alonso; Begoña Rivas; Cristina Vega-Cabrera; Carmen Busca Arenzana; Laura Yébenes Gregorio; Marina Alonso Riaño; Eugenia García Fernández; M. Auxiliadora Bajo Rubio;

Fibrillary glomerulonephritis simulating glomerular basal antimembrane antibody disease with associated thrombotic microangiopathy and ANCAp M. Dolores Sánchez de la Nieta García; Lucía González López; Paz Castro Fernández; Minerva Arambarri Segura; Alberto Martínez-Calero; Marina Alonso Riaño; Ana Sánchez-Fructuoso;

Acute kidney failure and nephrotic syndrome secondary to COVID-19-associated focal segmental glomerulosclerosis Amir Shabaka; Sofía Rovirosa-Bigot; Carmen Guerrero Márquez; Marina Alonso Riaño; Gema Fernández-Juárez;