Which findings indicate cancer-caused hypercalcemia?

Updated: Oct 03, 2018
  • Author: Mahendra Agraharkar, MD, MBBS, FACP, FASN; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Answer

Hypercalcemia from malignancy usually is rapidly progressive; thus, rapidly rising calcium levels should increase suspicion of malignancy. If calcium levels have been elevated for an unknown duration, the patient should be evaluated for the presence of malignancy. Breast, lung, and kidney cancers should be considered, as should multiple myeloma, lymphoma, and leukemia. Testing in such cases might include a peripheral blood smear and/or serum and urine immunofixation electrophoresis. Biopsy samples may be taken from a solid tumor or from bone marrow for tissue histology studies.


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