title: Small intestinal metastasis from renal cell carcinoma exhibiting rare findings.
abstract: Small intestinal metastasis from renal cell carcinoma (RCC) has only rarely been described. We report two patients who developed small bowel metastases from RCC showing different clinicopathological characteristics. Both patients underwent hemilateral nephrectomy for RCC and developed lung metastases metachronously or simultaneously. One patient developed occlusive ileus caused by multiple polypoid tumours composed of sarcomatoid tissue in the jejunum shortly after nephrectomy. The other patient presented melaena due to bleeding from a Borrmann 2-like tumour in the jejunum six years after nephrectomy. Clinically, his disease was slow-growing. Sarcomatoid histology and Borrmann 2-like tumour in this report are rare findings in metastatic tumour of RCC in the small bowel.
authors.affiliation: Department of Surgery, Tokyo Postal Services Agency Hospital, Tokyo, Japan.
authors.forename: H
authors.initials: H
authors.lastname: Nozawa
authors.forename: M
authors.initials: M
authors.lastname: Tsuchiya
authors.forename: T
authors.initials: T
authors.lastname: Kobayashi
authors.forename: H
authors.initials: H
authors.lastname: Morita
authors.forename: I
authors.initials: I
authors.lastname: Kobayashi
authors.forename: M
authors.initials: M
authors.lastname: Sakaguchi
authors.forename: T
authors.initials: T
authors.lastname: Mizutani
authors.forename: A
authors.initials: A
authors.lastname: Tajima
authors.forename: Y
authors.initials: Y
authors.lastname: Kishida
authors.forename: K
authors.initials: K
authors.lastname: Yakumaru
authors.forename: H
authors.initials: H
authors.lastname: Kagami
authors.forename: T
authors.initials: T
authors.lastname: Sekikawa
mesh_terms: D000970:Antineoplastic Agents / Q000627:therapeutic use; D002292:Carcinoma, Renal Cell / Q000175:diagnosis / Q000556:secondary* / Q000601:surgery; D017809:Fatal Outcome; D006801:Humans; D007372:Interferons / Q000627:therapeutic use; D007580:Jejunal Neoplasms / Q000175:diagnosis / Q000556:secondary* / Q000601:surgery; D007680:Kidney Neoplasms / Q000175:diagnosis / Q000473:pathology* / Q000601:surgery; D008175:Lung Neoplasms / Q000188:drug therapy / Q000556:secondary*; D008297:Male; D008875:Middle Aged; D009392:Nephrectomy / Q000379:methods; D014057:Tomography, X-Ray Computed
chemical_list: D000970:Antineoplastic Agents; D007372:Interferons