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  • Title: [Clinical analysis of 15 cases of malignant ovarian germ cell tumors with lung metastasis].
    Author: Liu Y, Ren T, Feng FZ, Wan XR, Shen K, Xiang Y.
    Journal: Zhonghua Fu Chan Ke Za Zhi; 2012 Jan; 47(1):40-4. PubMed ID: 22455692.
    Abstract:
    OBJECTIVE: To investigate the clinical characteristics, diagnosis, treatment and prognosis of malignant ovarian germ cell tumors (MOGCT) with lung metastasis. METHODS: Fifteen patients of MOGCT with lung metastasis treated in Peking Union Medical College Hospital from Jan. 1982 to Dec. 2010 was retrospectively analyzed. RESULTS: (1) Clinical characteristics: the average onset age of these 15 patients is (23 ± 11) years old (6 - 48 years). The majority of these patients presented with abdominal pain (8/15) or irregular vaginal bleeding (4/15) as their initial symptoms. The primary tumor located in the left ovary in 8 cases, right ovary in 6 cases, and both sides in only 1 case. Metastatic lesions were confined to the lung in 12 patients, while the other 3 patients were found to have multi-site distant metastasis. (2) DIAGNOSIS:all 15 cases included 9 pure non-gestational ovarian choriocarcinoma (NGOC), 3 MOGCT containing choriocarcinoma component (one mature teratoma with choriocarcinoma component, one endodermal sinus tumor with embryonal carcinoma and choriocarcinoma components, one choriocarcinoma with dysgerminoma component), 2 embryonal carcinoma, one immature teratoma. Only one patient in these 15 cases was correctly diagnosed before surgery. (3) Time of lung metastasis:of 12 MOGCT with choriocarcinoma component, 11 patients were found to have lung metastasis in the course of their primary treatment, only 1 had lung metastasis 2 months after the synthetic treatment finished. Three MOGCT patients without choriocarcinoma component were all found to have lung metastasis when tumor relapsed in the advanced stages of the disease. (4) TREATMENT:all 15 patients received multi-agent chemotherapy combined with surgery. The mean courses of chemotherapy for these patients were 16 courses (5 - 43 courses). (5) PROGNOSIS: of these 15 cases, complete remission was obtained in 10 patients of NGOC or mixed ovarian germ cell tumors with choriocarcinoma component, 3 patients (one NGOC, one endodermal carcinoma and one immature teratoma, respectively) died in the course of treatment as result of tumor progression, 2 progressed cases (one NGOC and one endodermal carcinoma respectively) abandoning therapy were lost to follow up. CONCLUSIONS: MOGCT with lung metastasis are more often to found in NGOC patients. These patients could obtain high complete remission rate after standard multi-agent chemotherapy combined with surgery. The prognosis of MOGCT with lung metastasis containing choriocarcinoma component are better than that of those without containing choriocarcinoma component.
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