[Hepatectomy for liver metastasis in malignant melanoma of ocular choroid origin-a case report].

A 55-year-old man who underwent eye enucleation at our hospital's ophthalmology department was pathologically diagnosed with malignant melanoma. Four months later after diagnosis, he underwent positron emission tomography/computed tomography for detecting systemic metastasis. Abnormal accumulation was found in S4 of the liver. He was therefore referred to the gastrointestinal department, where liver metastasis from malignant melanoma was diagnosed by biopsy. He underwent radiofrequency ablation therapy. A recurrence 3 months later was judged difficult to manage medically. He was thus sent to our department. Preoperative magnetic resonance imaging revealed multiple tumors in both liver lobes. Thus far, no treatment strategy has been established for hepatic metastases of malignant melanoma. After receiving a thorough explanation, he agreed to partial hepatectomy. We identified 14 tumors by intraoperative ultrasonography as sites for partial hepatectomy. Postoperative chemotherapy was administered. He died of hepatic failure 9 months after the operation. It is necessary to accumulate further cases on a national scale, because establishment of appropriate therapy for this condition is urgently needed.