[A case of advanced pancreatic cancer with spontaneous tumor lysis syndrome].

A 74-year-old male with pancreatic cancer and multiple huge liver metastases received palliative care due to the cancer progression after chemotherapy. The patient was admitted to our hospital for increased abdominal pain and dehydration. Tumor lysis syndrome was diagnosed on the fifth hospital day owing to the advancement of renal impairment, hyperuricemia, hyperkalemia, and hyperphosphatemia.