GCDFP-15

GCDFP-15 is a 15,000-dalton glycoprotein which is localized in the apocrine metaplastic epithelium lining breast cysts and in apocrine glands in the axilla, vulva, eyelid, and ear canal. Approximately 70% of breast carcinomas stain positive with antibody to GCDFP-15. Colorectal carcinomas, as well as mesotheliomas do not stain with this antibody. Lung adenocarcinoma rarely stains with this antibody.

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