[Benign placental trophoblast nodule. Case report with overview of proliferative diseases of the intermediate stage trophoblast]

Epithelioid trophoblastic tumor of the uterus: cytological and immunohistochemical observation of a case

Epithelioid trophoblastic tumor (ETT) is a new entity of trophoblastic tumor and 14 such cases were reported by Shih and Kurman in 1998. However, only three subsequent cases supporting ETT have been reported. Recently, we experienced a case of ETT in a 37-year-old woman whose preoperative endometrial brushings showed atypical mononucleate giant cells and who underwent hysterectomy with the diagnosis of a uterine fibroid. The specimens revealed a 2.5 x 3.0 cm yellow-tan intramural nodule located in the lower uterine segment, which was composed of a neoplastic proliferation of intermediate trophoblasts in epithelioid arrangements. Immunohistochemically, the tumor cells were diffusely positive for cytokeratin and inhibin-alpha, and focally positive for human chorionic gonadotropin and human placental lactogen. She presented an uneventful clinical course as of September 2001.

Placental site trophoblastic tumor (PSTT) initially misdiagnosed as cervical carcinoma

The placental site trophoblastic tumor (PSTT) is the rarest form of trophoblastic disease and shows a wide spectrum of symptoms. A 32-year-old women is presented with PSTT after abruptio in the 7th week of gestation which was initially misdiagnosed as cervical carcinoma on cervical punch biopsy. Therefore, a radical Wertheim-Held hysterectomy was done. The uterus showed a small tumor restricted to the cavum with no cervical infiltration, resembling in all histologic and immunohistochemical features a PSTT. The pelvic lymph nodes showed no metastases. There was no nephrotic syndrome. The patient showed no evidence of disease fourteen months after hysterectomy.