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Clinics and Practice
  • Clinics and Practice is published by MDPI from Volume 11 Issue 1 (2021). Previous articles were published by another publisher in Open Access under a CC-BY (or CC-BY-NC-ND) licence, and they are hosted by MDPI on mdpi.com as a courtesy and upon agreement with PAGEPress.
  • Case Report
  • Open Access

4 June 2012

A Case of Carcinoma of the Male Breast Mimicking a Mucinous Carcinoma of the Skin

and
1
Department of Dermatology, Japanese Red Cross Medical Center, Tokyo, Japan
2
Department of Breast Surgery, Japanese Red Cross Medical Center, Tokyo, Japan
*
Author to whom correspondence should be addressed.

Abstract

The authors report a case of mucinous carcinoma of the male breast firstly diagnosed as a mucinous carcinoma of the skin. The immunohistochemical results of this tumor were as follows: cytokeratin7 (-), gross cystic disease fluid protein 15 (-), p63 (-), estrogen receptor (+), and progesterone receptor (+) for the primary nodule; cytokeratin7 (-), thyroid transcription factor-1 (-), gross cystic disease fluid protein 15 (-), p63 (-), cytokeratin8 (+), cytokeratin18 (+), and cytokeratin20 (+) for the recurrent nodule. The tumor cells had cytokeratin7 (-)/ cytokeratin20 (+) phenotype and it was very unusual for mucinous carcinoma of the breast.

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