Human chorionic gonadotropin beta-subunit synthesis by undifferentiated urothelial carcinoma with syncytiotrophoblastic differentiation.

Oyasu, R; Nan, L; Smith, D P; Kawamata, H · Arch Pathol Lab Med · 1994

case_report · Level V

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Abstract

An undifferentiated deeply invasive ureteral carcinoma with syncytiotrophoblastic differentiation was analyzed for the synthesis of human chorionic gonadotropin beta-subunit by immunohistochemistry and Northern blot analysis. Human chorionic gonadotropin beta-subunit was localized immunohistochemically to syncytiotrophoblastic cells and scattered mononuclear tumor cells. Human chorionic gonadotropin beta-subunit gene was expressed at a high level by Northern blot analysis. To our knowledge, this is the first report demonstrating the synthesis of human chorionic gonadotropin beta-subunit at the transcriptional level in a urothelial carcinoma.

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