Nippon Ronen Igakkai Zasshi. Japanese Journal of Geriatrics
Print ISSN : 0300-9173
An elderly case of non-Hodgkin's lymphoma (NHL) with hypercalcemia
Hidetaka OtaKohtarou AzumaToshiyuki HoriuchiHirohito KazamaAtsushi ArakiTakayuki HosoiMotoji SawabeNorio AmizukaHajime Orimo
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2003 Volume 40 Issue 2 Pages 167-171

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Abstract

A 93 year-old woman was admitted due to anorexia and unconsciousness. Biochemical examination of serum showed hypercalcemia (corrected Ca; 16.6mg/dl). The level of intact parathyroid hormone (i-PTH) was suppressed, whereas parathyroid hormone-related peptide (PTHrp) was to 5.0pM (normal range: below 0.6pM). IL-6 and renal cAMP were also elevated. We started to ameliorate hypercalcemia by saline infusion, furosemide and calcitonin. However, hypercalcemia was not improved and the patient died of DIC and renal failure. Autopsy revealed primary lesion of NHL (diffuse large B cell type) to be in the stomach with infiltration of lymphoma into the liver, pancreas, spleen, adrenal glands, jejunum, and lumbar vertebrae. The results of immunohistochemical examination demonstrated the expression of PTHrP in lymphoma cells. PTHrP was also found in lymphoma cells of the spleen by the RT-PCR technique. These findings indicated that hypercalcemia was caused by overexpression of PTHrP from lymphoma cells.

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