The paper describes a case of anti-glomerular basement membrane glomerulonephritis (anti-GBM GN) concurrent with membranous glomerulopathy (MGP) in a 25-year-old female patient. The diagnosis was established on the basis of clinical, laboratory, and pathomorphological data, including electron microscopic ones). The comprehensive analysis, including ultrastructural diagnosis, is shown to be important in identifying this rare combination of two nosological entities, anti-GBM GN and MGP, in the same patient.
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