Presentation of Placental Site Trophoblastic Tumor with Amenorrhea

Placental site throphoblastic tumor (PSTT) is a rare manifestation of gestational trophoblastic neoplasia that may complicate any type of pregnancy. The disease is unique from other type, and is defined by slow growth, low human chorionic gonadotropin (hCG) serum levels, the late-onset metastatic potential, and most significantly, insensitivity to chemotherapy. We describe a case of a 31-year-old woman with prolonged amenorrhea and slightly elevated serum beta hCG (βhCG) level, referred for termination of abnormal pregnancy. During curettage, necrotic tissue was removed and severs vaginal bleeding was controlled with medical therapy. Histology examination showed neoplastic intermediate trophoblastic cells with invasion to the vessel wall compatible with PSTT. After that, hysterectomy was down and serum βhCG declined to undetectable level 2 weeks after surgery and was followed for 2 years without complication.

Abstract licence: CC BY-NC-SA

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