国际项目合作和学习是国际教育合作计划的重要组成部分，也是近几年全球教育者关注的个热点课题。IEARN（International Education and Resource Network）就是一个提供全球合作项目和学习的非盈利性国际教育资源网络机构，该网络方便...国际项目合作和学习是国际教育合作计划的重要组成部分，也是近几年全球教育者关注的个热点课题。IEARN（International Education and Resource Network）就是一个提供全球合作项目和学习的非盈利性国际教育资源网络机构，该网络方便教师和青少年利用互联网和其他技术进行项目合作和学习，并且期待能对世界产生一定的影响。本文试图通过对该网络机构的功能特点、项目案例以及发展现状的介绍，以期对我国在iEARN方面的发展有所借鉴和帮助。展开更多
OBJECTIVE To explore the clinical features, pathologiccharacteristics and prognosis of double primary malignant tumorswith involvement of the stomach and an extragastric site.METHODS We reviewed the records of 496 pat...OBJECTIVE To explore the clinical features, pathologiccharacteristics and prognosis of double primary malignant tumorswith involvement of the stomach and an extragastric site.METHODS We reviewed the records of 496 patients whounderwent surgery for gastric cancer in our department fromJanuary 2004 to December 2006. Synchronous double primarycancer was defined as an extragastric cancer diagnosed within a6-month interval before the detection of gastric cancer; any gastriccancer metastasis to other areas of the body was excluded.RESULTS Synchronous and metachronous double primarycancers were identified in 1 and in 5 patients, respectively. Theextragastric sites of the primary tumors in patients with gastriccancer were esophagus in 1 case, right colon in 1, rectum in 1,breast in 2 and lung in 1. Following gastric surgery, 5 patientsdied (within 2 mon, 24 mon, 30 mon, 48 mon and 60 mon). Only 1patient has survived and remains disease free.CONCLUSION The prognosis of patients with gastric cancerand a second primary is relatively poor. It is necessary to performregular esophagogastroduodenoscopy (EGD) on patients whohave been diagnosed with extragastric cancer, regardless of theirsymptoms.展开更多
文摘国际项目合作和学习是国际教育合作计划的重要组成部分，也是近几年全球教育者关注的个热点课题。IEARN（International Education and Resource Network）就是一个提供全球合作项目和学习的非盈利性国际教育资源网络机构，该网络方便教师和青少年利用互联网和其他技术进行项目合作和学习，并且期待能对世界产生一定的影响。本文试图通过对该网络机构的功能特点、项目案例以及发展现状的介绍，以期对我国在iEARN方面的发展有所借鉴和帮助。
文摘OBJECTIVE To explore the clinical features, pathologiccharacteristics and prognosis of double primary malignant tumorswith involvement of the stomach and an extragastric site.METHODS We reviewed the records of 496 patients whounderwent surgery for gastric cancer in our department fromJanuary 2004 to December 2006. Synchronous double primarycancer was defined as an extragastric cancer diagnosed within a6-month interval before the detection of gastric cancer; any gastriccancer metastasis to other areas of the body was excluded.RESULTS Synchronous and metachronous double primarycancers were identified in 1 and in 5 patients, respectively. Theextragastric sites of the primary tumors in patients with gastriccancer were esophagus in 1 case, right colon in 1, rectum in 1,breast in 2 and lung in 1. Following gastric surgery, 5 patientsdied (within 2 mon, 24 mon, 30 mon, 48 mon and 60 mon). Only 1patient has survived and remains disease free.CONCLUSION The prognosis of patients with gastric cancerand a second primary is relatively poor. It is necessary to performregular esophagogastroduodenoscopy (EGD) on patients whohave been diagnosed with extragastric cancer, regardless of theirsymptoms.
