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Intracranial germ cell tumors (GCTs) are relatively rare. Their incidence has been considered to be higher in East Asia than in the United States. This study estimates the incidence of CNS GCTs in Japan and the United States, investigates gender discrepancies in each country, and describes treatment outcomes. Data on primary CNS GCTs from 4 databases were(More)
BACKGROUND The Japan Lung Cancer Society, the Japanese Association for Chest Surgery, and the Japanese Respiratory Society jointly established the Japanese Joint Committee for Lung Cancer Registration, which has regularly conducted lung cancer registries for surgical cases in 5-year periods. We analyzed data obtained in these registries to reveal the most(More)
PURPOSE The validation of tumor, node, metastasis staging system in terms of prognosis is an indispensable part of establishing a better staging system in lung cancer. METHODS In 2005, 387 Japanese institutions submitted information regarding the prognosis and clinicopathologic profiles of patients who underwent pulmonary resections for primary lung(More)
INTRODUCTION This retrospective study was designed to identify the predictors of long-term survival and the risk factors for complications after surgery in patients aged 80 years or older with clinical (c)-stage I non-small cell lung cancer. METHODS The Japanese Joint Committee of Lung Cancer Registry collated the clinicopathological profiles and outcomes(More)
PURPOSE To investigate prognoses of lung cancer patients prospectively enrolled in the Japan Lung Cancer Registry Study. METHODS Patients newly diagnosed as having lung cancer exclusively in 2002 were enrolled. Follow-up surveys were performed twice, in 2004 and 2009, and the final follow-up data with prognoses were analyzed for 14,695 patients (79%).(More)
INTRODUCTION Women with non-small cell lung cancer (NSCLC) are more likely to have better survival than men. This study intended to assess gender differences in the survival of these patients in a large registry population. METHODS In 2005, the Japanese Joint Committee for Lung Cancer Registration performed a nationwide retrospective registry study(More)
OBJECTIVE This study explored the relationship between the histologic subtype of thymoma according to the new World Health Organization histologic classification and the clinical findings, as well as the prognostic significance of the classification. METHODS A total of 130 patients with thymoma, who underwent resection at the National Cancer Center(More)
For the scheduled future revision of the TNM staging system for lung cancer, it is important that the present 1997 version be evaluated in a large population. In 2001, the Japanese Joint Committee of Lung Cancer Registry sent a questionnaire to 320 Japanese institutions regarding the prognosis and clinicopathological profiles of patients who underwent the(More)
The Japan Lung Cancer Society, Japanese Association for Chest Surgery, and Japanese Respiratory Society jointly established the Japanese Joint Committee for Lung Cancer Registration. In 2010, analyses of 11,663 cases of lung cancer that underwent surgical resection in 2004 were performed, then the findings were registered and collected for analysis by the(More)
OBJECTIVE The 1997 version of the TNM staging system for lung cancer has several prognostic problems. Among these, the overlapping survival of stages IB and IIA is the most serious. We performed this retrospective study to test a revised TNM staging system for lung cancer. METHODS We revised the T1 descriptor definition and stage grouping for testing as(More)