Case ReportPublished 13 July 2026Case Report: Renal sarcoidosis coexisting with membranous and IgA nephropathy, a very uncommon associationMariel Hernández-Pérez · Daniel Enos · Rocío Contreras Faundez · Joaquín Ramírez Herrera · Pablo Tapia Riedemann · Gonzalo P. Méndez · Jorge Gutiérrez VenturaFrontiers in Nephrologydoi 10.3389/fneph.2026.1809424