PLA2R1 and glioblastoma: This patient presented clinically with nephrotic syndrome concomitant with acute kidney injury, no extra-renal manifestations of GBM, serum PLA2R antibody titre 600, PLA2R (3 +) visible on renal biopsy, no nephropathological manifestations of GBM, pathological diagnosis: membranous nephropathy with partial crescent formation.