Tumor lysis syndrome (TLS) is an oncologic emergency in which tumor cells undergo lysis either spontaneously or due to the initiation of cancer therapy typically presenting with hypocalcemia. We described a 62-year-old male patient with spontaneous TLS and hypercalcemia without a known malignancy, who is later discovered to have plasma cell leukemia.
Keywords: calcium; hypercalcemia; leukemia; plasma cell leukemia; spontaneous tumor lysis syndrome; tumor lysis syndrome.
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