Nefrologia, cilt.46, sa.1, 2026 (Scopus)
Kidney involvement in mantle cell lymphoma is rare. We report a case of mantle cell lymphoma diagnosed after rapidly progressive glomerulonephritis with biopsy-proven paraneoplastic anti-neutrophil cytoplasmic antibody positive pauci-immune cresentic glomerulonephritis. Lymphoma treatment resulted in improved kidney function. This report demonstrates that pauci-immune cresentic glomerulonephritis can cause kidney impairment as the initial manifestation of mantle cell lymphoma. Physicians should be aware of the atypical presentations of the disease.