SURVIVAL AND PROGNOSTIC FACTORS ASSOCIATED WITH METASTATIC NONSEMINOMATOUS TESTICULAR AND EXTRAGONADAL GERM CELL TUMORS

345 Background: Extragonadal germ cell tumors (EGGCT) are very rare and account for only 2% to 5% of all malignant germ cell neoplasms. Although multimodality treatment, including cisplatin-based chemotherapy and postchemotherapy surgery, has improved the prognosis of patients with EGGCT, few findings are available for these tumors. We therefore performed a retrospective analysis of Japanese patients with EGGCT. Methods: We performed a retrospective review of the medical records of 34 male patients ranging in age from 18 to 62 years (median age, 30 years) treated at our institution between 1982 and 2010. Fifteen patients (44%) had primary mediastinal EGGCT, 16 patients (47%) had primary retroperitoneal EGGCT, and three patients (9%) had primary mediastinal and retroperitoneal EGGCT. Results: Twenty-six patients (76%) had nonseminomatous EGGCT, and eight patients (24%) had seminomatous histology. Surgical procedures were performed in five patients (15%) as induction treatment. Three of them had seminomatous histology and were continuously disease-free after adjuvant chemotherapy. Twenty-nine patients (85%) had received cisplatin-containing regimen as induction therapy. Twenty-three patients underwent post–chemotherapy surgery, and 14 of them (60%) had residual viable malignant cells. On univariate analysis, nonseminomatous EGGCT (P<0.01) and resistance to cisplatin (lack of achievement of CR/PRm- by induction chemotherapy; P<0.01) were identified as negative prognostic factors for survival. Twenty of 34 patients (59%) were alive without disease, and 13 patients with nonseminomatous histology died of disease progression. The overall 10-year survival rate for all patients was 53%. Conclusions: Patients with seminomatous EGGCT have a very good prognosis, while nonseminomatous histology and resistance to cisplatin were found to be negative prognostic factors.

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Clinicopathological Features, Prognostic Factors, Survival Trends, and Treatment of Malignant Ovarian Germ Cell Tumors: A SEER Database Analysis

Oncology Research and Treatment ◽

10.1159/000509189 ◽

2021 ◽

Vol 44 (4) ◽

pp. 145-152

Author(s):

Hualei Guo ◽

Hao Chen ◽

Wenhui Wang ◽

Lingna Chen

Keyword(s):

Prognostic Factors ◽

Germ Cell ◽

Proportional Hazards ◽

Germ Cell Tumors ◽

Cox Proportional Hazards ◽

Low Grade ◽

Seer Database ◽

Survival Times ◽

Survival Curves ◽

Significant Difference

Objective: The aim of this study was to investigate the clinicopathological prognostic factors of malignant ovarian germ cell tumors (MOGCT) and evaluate the survival trends of MOGCT by histotype. Methods: We extracted data on 1,963 MOGCT cases diagnosed between 2000 and 2014 from the Surveillance, Epidemiology, and End Results (SEER) database and the histological classification of MOGCT, including 5 categories: dysgerminoma, embryonal carcinoma (EC), yolk sac tumor, malignant teratoma, and mixed germ cell tumor. We examined overall and disease-specific survival of the 5 histological types. Kaplan-Meier and Cox proportional hazards regression models were used to estimate survival curves and prognostic factors. We also estimated survival curves of MOGCT according to different treatments. Results: There was a significant difference in prognosis among different histological classifications. Age, histotype, grade, SEER stage, and surgery were independent prognostic factors for survival of patients with MOGCT. For all histotypes, 1-, 3-, and 5-year survival rate estimates were >85%, except for EC, which had the worst outcomes at 1 year (55.6%), 3 years (44.4%), and 5 years (33.3%). In the distant SEER stage, both chemotherapy and surgery were associated with improved survival outcomes compared with surgery- and chemotherapy-only groups. Conclusions: Dysgerminoma patients had the most favorable outcomes, whereas EC patients had the worst survival. A young age, low grade, and surgery were all significant predictors for improved survival. In contrast, a distant SEER stage was a risk factor for poor survival. Chemotherapy combined with surgery contributed to longer survival times of patients with MOGCT in the distant SEER stage.

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GCT-27. CLINICAL FEATURES AND PROGNOSTIC FACTORS OF NONGERMINOMATOUS GERM CELL TUMORS IN 111 CONSECUTIVE PATIENTS IN A SINGLE INSTITUTION: IMPACT OF IRRADIATION AND CHEMOTHERAPY CYCLES ON SURVIVAL

Neuro-Oncology ◽

10.1093/neuonc/noaa222.247 ◽

2020 ◽

Vol 22 (Supplement_3) ◽

pp. iii333-iii333

Author(s):

Lei Wen ◽

Juan Li ◽

Qingjun Hu ◽

Mingyao Lai ◽

Cheng Zhou ◽

...

Keyword(s):

Prognostic Factors ◽

Germ Cell ◽

Chinese Population ◽

Germ Cell Tumors ◽

Tumor Diameter ◽

Limited Data ◽

Single Institution ◽

Large Institution ◽

Significant Difference

Abstract BACKGROUND Limited data is available in intracranial nongerminomatous germ cell tumors (NGGCTs) in Chinese population. Here we aimed to retrospectively assess the clinical-pathological and prognostic factors of NGGCTs in a single large institution in China. METHODS From June 2003 to December 2018, 111 consecutive NGGCTs were treated in Guangdong Sanjiu Brain Hospital, China. RESULTS The median follow-up was 36.2 months (range, 1.2 to 131.2 months). Three-year EFS and OS for 111 NGGCTs patients were 78.5%±4.5% and 82.8%±4.0%, respectively. 98 patients received CSI plus boost yielded better survival than those who received reduced-volume radiotherapy or no radiotherapy (3y OS, 86.7% vs. 51.4%, p=0.007). Patients had at least four cycles of chemotherapy were strongly associated with improved 3-year OS, compared to those received less than 4 cycles (94.1% vs. 63.6%, p＜0.001). There was no significant difference in survival of patients stratified by age, surgery, hydrocephalus, as well as tumor diameter. Multivariate analysis identified chemotherapy cycles less than 4 was the only prognostic factor that conferring a worse OS (p=0.003). Patients both received CSI and at least 4 courses of chemotherapy were correlated with lower incidence of relapse (p=0.044). CONCLUSIONS Multimodal approach including CSI and enough courses of chemotherapy was effective and should be recommended for the treatment of newly diagnosed NGGCTs in Chinese population.

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A Rare Case of Primary Anterior Mediastinal Yolk Sac Tumor in an Elderly Adult Male

Case Reports in Oncological Medicine ◽

10.1155/2016/8961486 ◽

2016 ◽

Vol 2016 ◽

pp. 1-4 ◽

Cited By ~ 2

Author(s):

Sammy G. Nakhla ◽

Srinath Sundararajan

Keyword(s):

Germ Cell ◽

Rare Case ◽

Germ Cell Tumors ◽

Anterior Mediastinum ◽

Yolk Sac ◽

Yolk Sac Tumor ◽

Elderly Adult ◽

Children And Young Adults ◽

Extragonadal Germ Cell Tumors ◽

Mediastinal Germ Cell Tumors

Mediastinal germ cell tumors are extragonadal germ cell tumors (EGGCTs) commonly seen in children and young adults. They are more common in men. Clinically they are classified as teratomas, seminomas, and nonseminomatous germ cell tumors. Primary mediastinal yolk sac neoplasm is an extremely rare tumor. We present here a very rare case of primary yolk sac tumor of the anterior mediastinum in a 73-year-old male. Mediastinal germ cell tumors have a worse prognosis than gonadal germ cell tumors. Chemotherapy followed by adjuvant surgery improves overall response in EGGCTs. However, comorbidities can render treatment with chemotherapy and surgery challenging in elderly patients.

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