Elmusa Emad, Raza Muhammad Waleed, Hamza Ameer, Khokhar Hassan Tahir, Butt Mujtaba
Internal Medicine, HCA Florida Orange Park Hospital, Orange Park, USA.
Gastroenterology, Borland Groover Clinic, Jacksonville, USA.
Cureus. 2022 Dec 15;14(12):e32554. doi: 10.7759/cureus.32554. eCollection 2022 Dec.
Renal cell carcinoma (RCC) most commonly metastasizes to the lungs, and it is uncommon for RCC to metastasize to the small bowel. Small bowel metastasis commonly presents with gastrointestinal (GI) bleeding. In rare cases, a metastatic small bowel mass can serve as a lead point for intussusception. In this report, we present the case of a male patient whose chief complaint was melena. The patient denied any abdominal pain or nausea. Investigation with push enteroscopy revealed a jejunal mass, and further evaluation with CT showed small bowel intussusception. The patient subsequently underwent small bowel resection and anastomosis. Histopathology confirmed that the jejunal mass was metastatic RCC. We present this case in order to showcase the utility of push enteroscopy in the diagnosis of small bowel metastasis in RCC.
肾细胞癌（RCC）最常转移至肺部，而RCC转移至小肠并不常见。小肠转移通常表现为胃肠道（GI）出血。在罕见情况下，转移性小肠肿块可作为肠套叠的起始点。在本报告中，我们介绍了一名以黑便为主诉的男性患者。患者否认有任何腹痛或恶心症状。推进式小肠镜检查发现空肠有肿块，CT进一步评估显示小肠套叠。该患者随后接受了小肠切除和吻合术。组织病理学证实空肠肿块为转移性RCC。我们展示此病例是为了说明推进式小肠镜在诊断RCC小肠转移中的作用。
