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Primary hepatic neuroendocrine tumors (PHNETs) are extremely rare and are difficult to diagnose preoperatively.We report a case of PHNET diagnosed preoperatively and successfully resected using associating liver partition and portal vein ligation for staged hepatectomy (ALPPS).A 72-year-old woman was admitted to our hospital for a hepatic mass, which was incidentally identified during a routine health checkup. The patient has no other obvious symptoms of discomfort.Physical examination revealed a palpable mass in the right upper quadrant of her abdomen. Dynamic contrast-enhanced abdominal computed tomography (CT) showed a low-density mass measuring 13 × 7 × 6 cm in both, the right and left hepatic lobes. 18F-fluorodesoxyglucose positron emission tomography (18F-FDG PET) and fused PET/CT showed increased uptake by the mass, which was indicative of a hepatic tumor.We use a novel ALPPS surgical procedure to safely and radically remove primary neuroendocrine tumors.No postoperative bleeding and bile leakage were reported, and the patient recovered uneventfully.The patient was followed-up for a year without recurrence.PHNETs are rare tumors, and confirming the diagnosis using the best possible preoperative examination is important. An optimal treatment plan is selected based on the patient's condition to ensure a favorable prognosis. Tumors too large to undergo surgical removal can be resected using the ALPPS procedure, as described in this case report.