[A Case of Hepatocellular Carcinoma with Erythrocytosis]

Hepatocellular carcinoma is associated with a relatively high rate of paraneoplastic syndrome, but the frequency of erythrocytosis is low. We report a case of hepatocellular carcinoma with preoperative erythrocytosis and hypererythropoietinemia. The case is a 50-year-old man who has been cured by interferon treatment for hepatitis C 20 years ago(SVR). He visited our hospital with the complaint of right hypochondrial pain, and was diagnosed with hepatocellular carcinoma, which occupied S8/5/7 of the liver, and showed erythrocytosis and high erythropoietin(Epo)as tumor-related symptoms. A right hepatic lobectomy was performed, and the patient was discharged 13 days after the operation. The red blood cell count and Epo were normalized immediately after the operation. One year and 2 months after the operation, multiple lung metastases recurred, and chemotherapy is currently underway. Hepatocellular carcinoma with erythrocytosis and hypererythropoietinemia has been reported to have a poor prognosis, and multimodal treatment and strict surveillance are considered necessary.