Chung Jae-Wook, Kang Jun-Koo, Lee Eun Hye, Chun So Young, Ha Yun-Sok, Lee Jun Nyung, Kim Tae-Hwan, Kwon Tae Gyun, Yoon Ghil Suk
Department of Urology, Kyungpook National University Hospital, Daegu 41404, South Korea.
Department of Urology, School of Medicine, Kyungpook National University, Daegu 41404, South Korea.
World J Clin Cases. 2023 Sep 6;11(25):5994-5999. doi: 10.12998/wjcc.v11.i25.5994.
Renal cell carcinoma (RCC) is the third most common malignancy in the genitourinary tract. The lungs, bone, lymph nodes, liver, and brain are common metastatic sites of RCC. However, there is limited literature on single omental metastasis of RCC.
We present the case of a 44-year-old man with single omental metastasis of RCC after laparoscopic radical nephrectomy. Pathological diagnosis of the resected left kidney revealed pT3a clear cell RCC (Fuhrman grade III). At 6 mo postoperatively, abdominal computed tomography revealed a 12-mm enhancing nodule in the left lower peritoneum. At 7 mo after initial operation, laparoscopic removal of the left omental nodule was performed. The pathological results indicated metastatic clear cell RCC. Currently, the patient is being treated with adjuvant pembrolizumab.
Omental metastasis of RCC owing to laparoscopic radical nephrectomy is rare. Urologists should be aware of the diverse nature of RCC.
肾细胞癌（RCC）是泌尿生殖道中第三常见的恶性肿瘤。肺、骨、淋巴结、肝和脑是RCC常见的转移部位。然而，关于RCC单纯大网膜转移的文献有限。
我们报告了一例44岁男性患者，在腹腔镜根治性肾切除术后发生RCC单纯大网膜转移。切除的左肾病理诊断为pT3a透明细胞肾细胞癌（福尔曼三级）。术后6个月，腹部计算机断层扫描显示左下腹腹膜有一个12毫米的强化结节。初次手术后7个月，通过腹腔镜切除了左大网膜结节。病理结果显示为转移性透明细胞肾细胞癌。目前，该患者正在接受辅助派姆单抗治疗。
腹腔镜根治性肾切除术后发生RCC大网膜转移较为罕见。泌尿外科医生应了解RCC的多样性。
