Resection of Primary Hepatic Neuroendocrine Tumor

Abstract

Neuroendocrine tumors (NETs) of the gastrointestinal tract, pancreas, and liver are very rare. We report a case of primary hepatic NET. The patient was a 74-year-old man who had undergone left renal pelvis carcinoma surgery, in whom liver metastasis in segment 7 was detected by follow-up CT. We performed a liver biopsy and a NET was diagnosed. We performed radiofrequency ablation (RFA) on segment 7 of the liver. Nine months later, he had a recurrence of liver cancer (segment 4: two sites, segment 5: one site), for which we performed transcatheter arterial chemoembolization. Eighteen months later, both lesions enlarged, and we performed RFA on segment 5. The two sites in segment 4 were difficult to treat by RFA, therefore a laparoscopic liver partial resection was performed. The postoperative pathological diagnosis was NET G1 according to the WHO Classification of Tumours of the Digestive System.