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KMID : 0882420130840010130
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Korean Journal of Medicine
2013 Volume.84 No. 1 p.130 ~ p.134
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A Case of Pseudohyperphosphatemia in a Patient with Multiple Myeloma
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Lee Sun-Ah
Lee Jung-Lim
Park Kun-Woo
Kim Hyeong-Seok
Bae Soo-Hyun
Chang Soon-Hee
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Abstract
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Hyperphosphatemia develops when there is impaired renal phosphate excretion or massive extracellular fluid phosphate load. For example, renal insufficiency, hypoparathyroidism, exogenous phosphate administration, and extensive cellular injury induce a hyperphosphatemic state. In patients with multiple myeloma, renal insufficiency occurs as a result of hypercalcemia, light chain tubulopathy, urate nephropathy or infection, and hyperphosphatemia usually results from renal failure. We report here a case of a patient with multiple myeloma who had an elevated serum phosphate level measured by the phosphomolybdate UV method without significant renal insufficiency and was finally diagnosed with pseudohyperphosphatemia.
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KEYWORD
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Multiple myeloma, Hyperphosphatemia
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