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Breast Cancer Metastasis Masquerading as Primary Colon and Gastric Cancer: A Case Report

Arish Noor, Nerea Lopetegui-Lia, Aakash Desai, Thalia Mesologites, Joerg Rathmann

(Department of Internal Medicine, University of Connecticut, Farmington, CT, USA)

Am J Case Rep 2020; 21:e917376

DOI: 10.12659/AJCR.917376


BACKGROUND: Breast cancer is the most common malignancy in women worldwide. Despite treatment, recurrence and metastasis are common. Lobular breast cancer most commonly metastasizes to the lungs, liver, lymph nodes, and sites in the brain. Metastasis to the gastrointestinal tract is rare, with few cases reported to date.
CASE REPORT: This report describes a patient with late colon and gastric metastases from lobular breast cancer mimicking primary colon and gastric cancers.
CONCLUSIONS: Immunohistochemical methods can help differentiate metastatic breast disease to the gastrointestinal tract from primary gastrointestinal malignancy.

This paper has been published under Creative Common Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) allowing to download articles and share them with others as long as they credit the authors and the publisher, but without permission to change them in any way or use them commercially.
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