Iwamuro Masaya, Kamio Tomohiro, Hirata Shoichiro, Tanaka Takehiro, Otsuka Motoyuki
Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, JPN.
Department of Pathology, Okayama University Hospital, Okayama, JPN.
Cureus. 2025 Feb 25;17(2):e79651. doi: 10.7759/cureus.79651. eCollection 2025 Feb.
Here, we report a rare case of renal cell carcinoma (RCC) initially detected as a gastric metastasis. A 58-year-old man with epigastric discomfort underwent esophagogastroduodenoscopy, which revealed a reddish semi-pedunculated lesion with a whitish coating. Biopsy and imaging confirmed clear cell RCC metastasis. Contrast-enhanced computed tomography (CT) revealed a primary renal tumor with pancreatic and lymph node metastases. Despite chemotherapy treatment, the patient died after 10 months. Gastric metastases from RCC, although rare, should be considered in highly vascular gastric lesions with white coatings. Clinicians must be vigilant for metastatic diseases with atypical gastric findings.
在此，我们报告一例罕见的最初被检测为胃转移的肾细胞癌（RCC）病例。一名58岁有上腹部不适的男性接受了食管胃十二指肠镜检查，发现一个带白色被覆的微红半带蒂病变。活检和影像学检查证实为透明细胞RCC转移。增强计算机断层扫描（CT）显示原发性肾肿瘤伴有胰腺和淋巴结转移。尽管进行了化疗，患者在10个月后死亡。RCC的胃转移虽然罕见，但在有白色被覆的高血管性胃部病变中应予以考虑。临床医生必须警惕具有非典型胃部表现的转移性疾病。
