Hepatocellular carcinoma (HCC) rarely originates in extrahepatic liver tissue. Laparoscopic resection is widely used to treat HCC. This report presents a case of a patient with ectopic HCC arising in the left triangular ligament of the liver that was successfully treated by laparoscopic resection. A 59-year-old female presented with an elevated serum alpha-fetoprotein (AFP) level (2,508 ng/ml). Dynamic computed tomography demonstrated a tumor measuring 20 mm in diameter below the left diaphragm just adjacent to the spleen. The tumor showed contrast enhancement in the hepatic arterial phase and became less dense than the liver parenchyma in the portal phase. The patient was diagnosed with ectopic HCC arising in the left diaphragm and laparoscopic surgery was performed. The tumor was located in the left triangular ligament of the liver and had a stalk between the tumor and the liver. The tumor was resected, and the final diagnosis was moderately differentiated ectopic HCC arising in the left triangular ligament of the liver. The patient had an uneventful postoperative recovery and has experienced no recurrence over 18 months after the operation.
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机译：肝细胞癌（HCC）很少起源于肝外肝组织。腹腔镜切除术被广泛用于治疗肝癌。该报告介绍了一例在腹腔镜切除术成功治疗的肝左三角韧带异位肝癌患者。一名59岁女性的血清甲胎蛋白（AFP）水平升高（2,508 ng / ml）。动态计算机断层摄影术显示一个肿瘤，在靠近脾脏的左横diaphragm膜下方直径为20毫米。该肿瘤在肝动脉期显示对比度增强，并且在门脉期密度不及肝实质。该患者被诊断出左diaphragm肌出现异位HCC，并进行了腹腔镜手术。肿瘤位于肝脏的左三角韧带中，在肿瘤和肝脏之间有茎。切除肿瘤，最终诊断为肝脏左三角韧带中度分化的异位肝癌。该患者术后恢复平稳，术后18个月未复发。
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