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Kidney failure in multiple myeloma can be acute (reversible) or chronic (irreversible). Acute kidney failure typically resolves when the calcium and paraprotein levels are brought under control. Treatment of chronic kidney failure is dependent on the type of kidney failure and may involve dialysis.
Nephrotic syndrome is a collection of symptoms due to kidney damage. This includes protein in the urine, low blood albumin levels, high blood lipids, and significant swelling. Other symptoms may include weight gain, feeling tired, and foamy urine. Complications may include blood clots, infections, and high blood pressure.
At the time of diagnosis, 30% to 50% of light chain multiple myeloma patients have severe renal dysfunction or kidney failure due to light chain myeloma cast nephropathy or the nephrotoxic effects of free light chains on renal tubular cells. Patients are treated similarly to patients suffering the counterparts those with multiple myeloma except ...
Causes. [edit] Waldenström macroglobulinemia is characterized by an uncontrolled clonal proliferation of terminally differentiated B lymphocytes. The most commonly associated mutations, based on whole-genome sequencing of 30 patients, are a somatic mutation in MYD88 (90% of patients) and a somatic mutation in CXCR4 (27% of patients). [ 11 ]
Plasmacytoma is a tumor of plasma cells. The cells are identical to those seen in multiple myeloma, but they form discrete masses of cells in the skeleton (solitary plasmacytoma of bone; SPB) or in soft tissues (extramedullary plasmacytoma; EP). They do not present with systemic disease, which would classify them as another systemic plasma cell ...
Together they can form an insoluble precipitate which blocks the distal part of the nephrons. This is termed "cast nephropathy" or "myeloma kidney" and is typically found in patients with multiple myeloma. [14] [15] This can block the flow of urine causing the death of the
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