Metastatic prostatic adenocarcinoma within a primary solid papillary carcinoma of the male breast.

Sahoo, S; Smith, R E; Potz, J L; Rosen, P P · Arch Pathol Lab Med · 2001

case_report · Level V

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Abstract

We report the case of a 78-year-old man who developed a breast mass 12 months after hormonal therapy for palliation of prostatic adenocarcinoma. On histologic and immunohistochemical examination, the breast tumor revealed a unique collision tumor composed of metastatic prostatic adenocarcinoma and solid papillary breast carcinoma.

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