Ovarian Clear Cell Carcinoma With Choriocarcinomatous Differentiation: Report of a Rare and Aggressive Tumor
ABSTRACT Ovarian epithelial tumors of nongerm cell origin with true choriocarcinomatous differentiation are rare. To date, there are only 5 documented cases in the literature. In the reported cases, the epithelial component was of mixed cell types or of mucinous differentiation. To the best of our knowledge, an ovarian carcinoma exclusively of clear cell differentiation coexisting with a pure choriocarcinoma has not been reported earlier. A 48-year-old postmenopausal woman was found to have a large pelvic mass with lung and liver metastases. Trucut biopsy of the mass showed a poorly differentiated carcinoma that was immunoreactive for CK7 and hCG. She received 6 cycles of neoadjuvant chemotherapy that included 3 cycles of etoposide/cisplatin and 3 cycles of paclitaxel/etoposide-paclitaxel/carboplatin (TE/TP) with partial response. Debulking surgery was carried out subsequently. Pathologic examination showed an ovarian clear cell carcinoma with a second component of choriocarcinoma in which the bilaminar growth pattern of cytotrophoblast and syncytiotrophoblasts was striking. Despite additional therapy, which included 2 cycles of TE/TP and 2 cycles of gemcitabine/taxotere, the disease progressed and the patient died 11 months postoperatively. This report showed that ovarian clear cell carcinoma with choriocarcinomatous differentiation is a highly aggressive tumor and has a very poor prognosis. Nonetheless, there may be a role for neoadjuvant chemotherapy that targets both the clear cell and the choriocarcinoma components to reduce the volume of the disease before debulking surgery.
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ABSTRACT: Ovarian carcinomas may produce human chorionic gonadotropin (HCG) or HCG-like substances and may even contain syncytiotrophoblast cells, but a true choriocarcinomatous component has not been described in these tumors. Two cases of poorly differentiated ovarian carcinoma with choriocarcinomatous components are reported. Pathologic findings were correlated with immunohistochemical stains, hormonal effects, and clinical behavior. Each tumor contained a circumscribed, extensively necrotic and hemorrhagic brown nodule. Microscopically, the nodules exhibited a mixture of cytotrophoblast and syncytiotrophoblast. The syncytiotrophoblast capped cytotrophoblast and was strongly positive for beta-HCG. In one of the cases, a transformation zone composed of poorly differentiated carcinoma with occasional beta-HCG-positive cells was observed between a mucinous cystadenoma and the choriocarcinomatous elements. The two cases exhibited activation of the ovarian stroma in the form of condensation and luteinization. Extra-abdominal metastases developed early in both patients and, despite multiagent chemotherapy, they died shortly postoperatively. Choriocarcinoma may rarely develop as a result of dedifferentiation of common epithelial ovarian tumors. Recognition of choriocarcinomatous components in ovarian carcinomas is important because of its association with aggressive behavior.Cancer 11/1993; 72(8):2441-6. DOI:10.1002/1097-0142(19931015)72:8<2441::AID-CNCR2820720823>3.0.CO;2-N · 4.89 Impact Factor
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ABSTRACT: Primary cervical choriocarcinoma seen in a postmenopausal patient is a very rare entity. Primary choriocarcinoma of the uterine cervix was diagnosed in a 54-year-old woman. She had admitted to our clinic with vaginal bleeding and had been postmenopausal for 1 year at the time of diagnosis. A cervical tumoral mass was seen in her pelvic examination and cervical biopsy revealed squamous cell carcinoma of the cervix. Pelvic examination under anesthesia was done and patient was accepted as FIGO Stage IIA. Type III hysterectomy with bilateral salphingoopherectomy and bilateral pelvic-paraaortic lymph node dissection was carried out. Postoperative pathological evaluation of the surgical specimen showed that case was a primary choriocarcinoma of the cervix. This is one of the few reported cases of cervical choriocarcinoma in a postmenopausal patient. The most appropriate theory for the development of this tumor is metaplastic differentiation of the tumor from another histologic type.Gynecologic Oncology 10/2003; 90(3):667-9. DOI:10.1016/S0090-8258(03)00369-X · 3.77 Impact Factor
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ABSTRACT: This article documents a patient with lung carcinoma that produced three oncofetal antigens including alpha-fetoprotein (AFP), carcinoembryonic antigen (CEA), and human chorionic gonadotropin (hCG). Serum AFP, CEA, and hCG-beta-subunit were extremely high—118,000 ng/ml, 133 ng/ml and 0.9 ng/ml, respectively. Immunohistochemical staining of these tumor markers revealed that these proteins were present in different cells. The pattern of lectin-affinity electrophoresis of AFP resembled that of hepatocellular carcinoma. Also investigated was the reactivity of serum CEA to monoclonal antibodies against peptide or sugar moieties. Serum CEA values measured by antipeptide monoclonal antibodies were higher than those measured by antisugar monoclonal antibodies. The demonstration of AFP, CEA, and hCG in different tumor cells suggests that three genomes were not reactivated together in a cell, and the lung carcinoma probably consisted of at least three clones of cancer cells with different phenotypes.Cancer 12/1987; 60(11):2744 - 2750. DOI:10.1002/1097-0142(19871201)60:11<2744::AID-CNCR2820601126>3.0.CO;2-H · 4.89 Impact Factor