Triple gastrointestinal malignancies with tumor-to-tumor metastasis from gastric adenocarcinoma to small bowel adenocarcinoma: A case report

doi:10.4251/wjgo.v18.i4.115614

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Apr 15, 2026 (publication date) through Apr 11, 2026

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World Journal of Gastrointestinal Oncology

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Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.

World J Gastrointest Oncol. Apr 15, 2026; 18(4): 115614
Published online Apr 15, 2026. doi: 10.4251/wjgo.v18.i4.115614

Table 1 All the reported cases in the literature of tumor-to-tumor metastasis from primary gastric cancer

Ref.	Age/sex	Primary tumor (donor)	Recipient tumor site
Kunc et al[11]		Gastric adenocarcinoma	Reported cases included: 5 renal cell tumors, 2 meningiomas, 1 soft tissue tumor, 1 brain tumor, 4 uterine tumors, 2 pituitary gland tumors, 2 thyroid tumors, 1 lung tumor, and 2 skin tumors
Mei and Zhang[18]	52/F	Gastric adenocarcinoma	Chromophobe renal cell carcinoma
Nomura et al[13]	71/M	Gastric adenocarcinoma	Lipoma
Kiyokoba et al[17]	62/F	Gastric adenocarcinoma	Uterine lipoleiomyoma
Shi et al[19]	41/F	Gastric adenocarcinoma	Bilateral ovarian granulosa cell tumors
Sakai et al[15]	75/F	Gastric adenocarcinoma	Renal cells carcinoma
Pamphlett[14]	74/F	Gastric adenocarcinoma	Meningioma
Petraki et al[9]	66/F	Gastric adenocarcinoma	Renal cells carcinoma
Petraki et al[9]	45/M	Gastric adenocarcinoma	Pre-existent lympho-sarcoma at regional nodes

M: Male; F: Female.

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Citation: AlQattan AS, Binkhamis L, Foula MS, Alsalim A, Alselwi WM, Alzahir AA. Triple gastrointestinal malignancies with tumor-to-tumor metastasis from gastric adenocarcinoma to small bowel adenocarcinoma: A case report. World J Gastrointest Oncol 2026; 18(4): 115614
URL: https://www.wjgnet.com/1948-5204/full/v18/i4/115614.htm
DOI: https://dx.doi.org/10.4251/wjgo.v18.i4.115614