Immunhistochemische Bestimmung von Östrogenrezeptoren in Mammakarzinomgeweben mittels monoclonaler Antikörper*

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Abstract
The results of preliminary investigations into specific immunohistochemical detection of the estrogen receptor in breast cancer tissue by means of monoclonal antibodies are presented. Thirty-one tumor tissue samples stored in a tumor tissue bank for between 10 and 35 months were immunohistochemically studied. The comparison between the immunohistochemical result and the result of the biochemical estrogen receptor assay show a large measure of agreement (90%). The comparison of the results with regard to response to endocrine therapy in cases of metastatization shows that immunohistochemical detection furnishes at least as much information as the dextran-coated charcoal method.

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