The biliary system is an uncommon location for neuroendocrine tumours (NETs), and within this system, the common hepatic duct is an even more rare site for NETs. Clinical and radiological presentations are challenging because these tumours may be preoperatively confused with Klatskin-like lesions. Here we report a well-differentiated grade 2 NET arising from the common hepatic duct in a 64-year-old female. Curative surgery was performed, and no evidence of recurrent disease was observed at the 2-months follow-up.

中文翻译：

---

肝总管的原发性神经内分泌肿瘤：意外的克拉特斯样病灶。

胆道系统是神经内分泌肿瘤（NETs）罕见的部位，在该系统内，肝总管是NETs更为罕见的部位。临床和放射学表现具有挑战性，因为这些肿瘤在术前可能与类Klatskin样病变相混淆。在这里，我们报告了一名64岁女性的肝总管引起的分化良好的2级NET。进行了根治性手术，在2个月的随访中未观察到复发疾病的迹象。