Abe Iku, Kinoshita Takahiro, Kaito Akio, Sunagawa Hideki, Watanabe Masahiro, Sugita Shizuki, Tonouchi Akiko, Sato Reo
Gastric Surgery Division, National Cancer Center Hospital East, Kashiwa, Japan.
J Gastric Cancer. 2017 Jun;17(2):186-191. doi: 10.5230/jgc.2017.17.e13. Epub 2017 May 22.
The role of nodal station No. 14v (along the superior mesenteric vein) in lymphadenectomy for distal gastric cancer remains elusive. A 73-year-old woman underwent endoscopic submucosal dissection for gastric cancer, and was referred to our division for additional surgery because of pathologically non-curative resection. A laparoscopic distal gastrectomy with D1+ dissection was performed, with a final diagnosis of pT1bN1M0, Stage IB (2 nodal metastases to No. 6). Four months post-surgery, abdominal computed tomography revealed a 14-mm solitary nodule along the superior mesenteric vein. The lesion was excised and pathologically identified as a lymph node metastasis. Adjuvant chemotherapy with tegafur-gimeracil-oteracil potassium (S-1) was administered for the metastasis. Presently the patient survives without recurrence, 5.5 years after the second operation. Our findings suggest that there is lymphatic flow from the No. 6 to the No. 14v nodal station. Some patients with a No. 6 metastasis may benefit from a No. 14v lymphadenectomy, even in early-staged disease.
第14v组淋巴结(沿肠系膜上静脉)在远端胃癌淋巴结清扫中的作用仍不明确。一名73岁女性因胃癌接受了内镜下黏膜下剥离术,由于病理检查为非根治性切除,转诊至我科进行进一步手术。实施了腹腔镜远端胃癌根治术并进行D1+清扫,最终诊断为pT1bN1M0,ⅠB期(第6组淋巴结有2处转移)。术后4个月,腹部计算机断层扫描显示沿肠系膜上静脉有一个14毫米的孤立结节。该病变被切除,病理检查确定为淋巴结转移。给予替吉奥(S-1)辅助化疗以治疗转移灶。目前,患者在第二次手术后5.5年存活且无复发。我们的研究结果表明,存在从第6组淋巴结向第14v组淋巴结的淋巴引流。一些第6组淋巴结转移的患者,即使处于疾病早期,也可能从第14v组淋巴结清扫中获益。