Is It Contralateral Axillary Metastasis or Occult Breast Cancer: A Confusing Case Report

We report the case of a 43-year-old woman with primary left breast cancer presenting metastatic lymphadenopathy in the contralateral axilla. This patient represents a diagnostic and therapeutic challenge because primary breast cancer, occult contralateral breast cancer, and extra-mammary primary les...

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Main Authors: Yong Gi Son, Woon Won Kim, Ki Hoon Kim, Jin Soo Kim
Format: Article
Language:English
Published: Karger Publishers 2015-11-01
Series:Case Reports in Oncology
Subjects:
Online Access:http://www.karger.com/Article/FullText/440662
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author Yong Gi Son
Woon Won Kim
Ki Hoon Kim
Jin Soo Kim
author_facet Yong Gi Son
Woon Won Kim
Ki Hoon Kim
Jin Soo Kim
author_sort Yong Gi Son
collection DOAJ
description We report the case of a 43-year-old woman with primary left breast cancer presenting metastatic lymphadenopathy in the contralateral axilla. This patient represents a diagnostic and therapeutic challenge because primary breast cancer, occult contralateral breast cancer, and extra-mammary primary lesion can all be the source of the contralateral axillary metastasis. Left breast-conserving surgery, left sentinel lymph node biopsy, right breast mass excision, and right axillary lymph node dissection were performed. Immunohistochemical analysis revealed that the left breast cancer specimen was positive for estrogen receptor (ER) and progesterone receptor (PR), but negative for human epidermal growth factor receptor 2 (HER2). In contrast, the right axillary lymphadenopathy specimen was negative for ER and PR, but positive for HER2. Further investigation revealed no evidence of occult primary cancers or extra-mammary tumors. After surgical intervention, the patient was treated with adjuvant chemotherapy, adjuvant radiation therapy, and targeted therapy with trastuzumab. Two years after diagnosis, she is free of disease and presently being treated with tamoxifen.
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spelling doaj.art-ffd4ef6df7f746e59b691a69b0ec948c2022-12-22T02:52:46ZengKarger PublishersCase Reports in Oncology1662-65752015-11-018349850210.1159/000440662440662Is It Contralateral Axillary Metastasis or Occult Breast Cancer: A Confusing Case ReportYong Gi SonWoon Won KimKi Hoon KimJin Soo KimWe report the case of a 43-year-old woman with primary left breast cancer presenting metastatic lymphadenopathy in the contralateral axilla. This patient represents a diagnostic and therapeutic challenge because primary breast cancer, occult contralateral breast cancer, and extra-mammary primary lesion can all be the source of the contralateral axillary metastasis. Left breast-conserving surgery, left sentinel lymph node biopsy, right breast mass excision, and right axillary lymph node dissection were performed. Immunohistochemical analysis revealed that the left breast cancer specimen was positive for estrogen receptor (ER) and progesterone receptor (PR), but negative for human epidermal growth factor receptor 2 (HER2). In contrast, the right axillary lymphadenopathy specimen was negative for ER and PR, but positive for HER2. Further investigation revealed no evidence of occult primary cancers or extra-mammary tumors. After surgical intervention, the patient was treated with adjuvant chemotherapy, adjuvant radiation therapy, and targeted therapy with trastuzumab. Two years after diagnosis, she is free of disease and presently being treated with tamoxifen.http://www.karger.com/Article/FullText/440662ImmunohistochemistryBreast carcinomaOccult primary tumorContralateral axillary lymph node metastasis
spellingShingle Yong Gi Son
Woon Won Kim
Ki Hoon Kim
Jin Soo Kim
Is It Contralateral Axillary Metastasis or Occult Breast Cancer: A Confusing Case Report
Case Reports in Oncology
Immunohistochemistry
Breast carcinoma
Occult primary tumor
Contralateral axillary lymph node metastasis
title Is It Contralateral Axillary Metastasis or Occult Breast Cancer: A Confusing Case Report
title_full Is It Contralateral Axillary Metastasis or Occult Breast Cancer: A Confusing Case Report
title_fullStr Is It Contralateral Axillary Metastasis or Occult Breast Cancer: A Confusing Case Report
title_full_unstemmed Is It Contralateral Axillary Metastasis or Occult Breast Cancer: A Confusing Case Report
title_short Is It Contralateral Axillary Metastasis or Occult Breast Cancer: A Confusing Case Report
title_sort is it contralateral axillary metastasis or occult breast cancer a confusing case report
topic Immunohistochemistry
Breast carcinoma
Occult primary tumor
Contralateral axillary lymph node metastasis
url http://www.karger.com/Article/FullText/440662
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