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Giant kidneys in Waldenström's macroglobulinemia
Archives of Internal Medicine
|November 1, 1977
Summary
Waldenström's macroglobulinemia rarely infiltrates kidneys, but in one case, malignant cells formed a large abdominal mass. This infiltration caused kidney damage and led to whole IgM appearing in the urine.
Area of Science:
- Nephrology
- Hematology
- Oncology
Background:
- Waldenström's macroglobulinemia is a rare lymphoproliferative disorder characterized by malignant B-cells producing monoclonal IgM.
- Kidney involvement in Waldenström's macroglobulinemia is uncommon and typically presents with glomerulonephritis or amyloidosis.
Observation:
- A unique case of Waldenström's macroglobulinemia presented with extensive unilateral kidney infiltration by malignant cells.
- This infiltration resulted in a large, palpable abdominal mass, mimicking other renal pathologies.
Findings:
- The malignant cells extensively destroyed renal tubules, leading to interstitial fibrosis.
- The renal tubule destruction was associated with the excretion of whole IgM in the patient's urine.
Implications:
- This case highlights an unusual presentation of Waldenström's macroglobulinemia with significant renal mass formation.
- Understanding this unique kidney infiltration pattern can improve diagnostic accuracy and management strategies for rare hematologic malignancies affecting renal function.