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Case Reports in Gastrointestinal Medicine
Volume 2014, Article ID 232165, 5 pages
http://dx.doi.org/10.1155/2014/232165
Case Report

Gastric Metastasis of Ectopic Breast Cancer Mimicking Axillary Metastasis of Primary Gastric Cancer

1Department of General Surgery, Ankara Numune Research and Training Hospital, 06100 Ankara, Turkey
2Department of General Surgery, Ankara University School of Medicine, 06100 Ankara, Turkey
3Department of Surgical Oncology, Ankara University School of Medicine, 06590 Ankara, Turkey
4Department of Medical Pathology, Ankara University School of Medicine, 06100 Ankara, Turkey

Received 16 October 2014; Accepted 29 November 2014; Published 11 December 2014

Academic Editor: Haruhiko Sugimura

Copyright © 2014 Selami Ilgaz Kayılıoğlu et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Ectopic breast tissue has the ability to undergo all the pathological changes of the normal breast, including breast cancer. Gastrointestinal metastasis of breast cancer is rarely observed and it is very difficult to differentiate gastric metastases from primary gastric cancer. We present a case of 52-year-old female, who suffered from abdominal pain. Physical examination showed a palpable mass in the left anterior axilla and computerized tomography revealed gastric wall thickening with linitis plastica. When gastroscopic biopsy showed no signs of malignancy, excisional biopsy was performed in the left axilla. Histological examination revealed invasive lobular carcinoma of the breast, consistent with ectopic breast cancer. Further gastroscopic submucosal biopsies and immunohistochemical studies revealed gastric metastases of invasive lobular carcinoma. Axillary ectopic breast tissue carcinomas can mimic axillary lymphadenopathies. Additionally, gastric metastasis of breast cancer is an uncommon but possible condition. To the best of our knowledge, this is the first report of ectopic breast cancer with gastric metastasis.