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Adenomatoid tumors. Immunohistochemical study and histogenesis.

Mariano Urdiales-Viedma, S Martos-Padilla, Trinidad Caballero-Morales

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Abstract

Four testicular adenomatoid tumors were studied by immunohistochemistry, using the following antibodies to cytokeratin, epithelial membrane antigen, carcinoembryonic antigen, and factor VIII-related antigen. Cytokeratin and epithelial membrane antigen demonstrated a different pattern of positive immunostaining while carcinoembryonic antigen and factor VIII-related antigen proved constantly negative. Our findings support a mesothelial origin for adenomatoid tumors.

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What this paper is about

Four testicular adenomatoid tumors were studied by immunohistochemistry, using the following antibodies to cytokeratin, epithelial membrane antigen, carcinoembryonic antigen, and factor VIII-related antigen. Cytokeratin and epithelial membrane antigen demonstrated a different pattern of positive immunostaining while carcinoembryonic antigen and factor VIII-related antigen proved constantly negative. Our findings support a mesothelial origin for adenomatoid tumors.

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Available abstract

Four testicular adenomatoid tumors were studied by immunohistochemistry, using the following antibodies to cytokeratin, epithelial membrane antigen, carcinoembryonic antigen, and factor VIII-related antigen. Cytokeratin and epithelial membrane antigen demonstrated a different pattern of positive immunostaining while carcinoembryonic antigen and factor VIII-related antigen proved constantly negative. Our findings support a mesothelial origin for adenomatoid tumors.

Key concepts: Carcinoembryonic antigen, Immunohistochemistry, Histogenesis, Cytokeratin, Pathology, Immunostaining, Adenomatoid tumor, Antigen

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