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Greater omentum gastrointestinal stromal tumor with PDGFRA-mutation and hemoperitoneum

World Journal of Gastrointestinal Oncology 2012年第5期4卷 119-124页

作者： Yoko Murayama Masayuki Yamamoto Ryuichiro Iwasaki Tamana Miyazaki yukiko saji Yoshinori Doi Haruki Fukuda Seiichi Hirota Masahiro Hiratsuka Department of Gastroenterology and Hepatology Itami City HospitalItami 6648540Japan Department of Surgery Itami City HospitalItami 6648540Japan Department of Gastroenterology and Hepatology Otemae HospitalOsaka 5400008Japan Department of Pathology Itami City HospitalItami 6648540Japan Department of Surgical Pathology Hyogo College of MedicineNishinomiya 6638501Japan

Although gastrointestinal stromal tumor(GIST) occurs generally in the digestive tract,omental GIST is very *** report the first case of an adult greater omental GIST with a new platelet-derived growth factor receptor α gene(PDGFRA)-mutation with hemoperitoneum.A 43-year-old man was admitted to our hospital complaining of acute abdominal *** contrast-enhanced computed tomography revealed a huge mass in the right abdominal cavity,and a large accumulation of fluid in the pelvic cavity,suggesting *** diagnosed the rupture as an intra-abdominal tumor,and an emergency tumorectomy was performed with resection of the greater *** tumor was located in the distal right side ofthe greater omentum,and showed no continuity with the gastric *** tumor occurred primarily in the greater *** resected tumor was about 19 cm × 12 cm × 14 cm in diameter,and weighed 1529 ***,the tumor was composed of epithelioidshaped cells with high cellularity,and was positive for CD117 and CD34,and negative for S-100,α-smooth muscle *** mitosis was 6/50 under high power *** case showed exon 18 mutation of PDGFRA with 846(Asp to Glu) substitution,848(Asn to Lys) *** is the first report of this PDGFRA mutation in omental GIST,and this might play an important role in the tumorigenesis of this *** on these findings,the tumor was diagnosed as high risk GIST primarily occurring in the greater *** patient was treated with imatinib at a dose of 400 mg/d as adjuvant chemotherapy,and has been followed up for 24 mo with no evidence of recurrence.

关键词： Gastrointestinal stromal tumor Greater omentum Hemoperitoneum Platelet-derived growth factor receptor α gene KIT

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Gastric cancer mortality related to direct radiographic and endoscopic screening:A retrospective study

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World Journal of Gastroenterology 2021年第33期27卷 5595-5609页

作者： Hiroaki Hagiwara Fumitaka Moki yukiko Yamashita Kazuki saji Keigo Iesaki Hiromitsu Suda Department of Internal Medicine Hagiwara ClinicMaebashi 379-2106GunmaJapan Maebashi Medical Association Maebashi 371-0035GunmaJapan Gunma Health Foundation Maebashi 371-0005GunmaJapan Department of Internal Medicine and Surgery Yamashita ClinicMaebashi 371-0016GunmaJapan Department of Internal Medicine Saji ClinicMaebashi 371-0133GunmaJapan Department of Internal Medicine Iesaki ClinicMaebashi 371-0805GunmaJapan Department of Pediatrics Suda Kids ClinicMaebashi 371-0813GunmaJapan

BACKGROUND Despite its decreased incidence in Japan,gastric cancer continues among the leading causes of cancer-related deaths in both men and ***,efforts are still required to lower the mortality rate of gastric cancer in *** City introduced endoscopic gastric cancer screening in 2004,and participants are able to choose between direct radiography and ***,we expected to see a decrease in mortality rate from gastric cancer after introducing endoscopic screening and a difference in mortality rate reduction between screening *** To evaluate the impact on gastric cancer mortality rate of two types of gastric cancer screening in Maebashi City,*** Participants aged 40 to 79 years of the Maebashi City gastric cancer screening program in 2006 who were screened by direct radiography(n=11155)or endoscopy(n=10747)were *** were followed until March 31,2012,by cross-referencing their data against the Gunma Prefecture cancer registry *** compared the detection rate of gastric ***,we compared the mortality rate between the two *** Cox proportional hazards model was used to estimate the hazard ratio(HR)of gastric cancer ***,the reduction in gastric cancer mortality rate associated with each screening method was *** Gastric cancer was detected in 22 participants undergoing direct radiography(detection rate,0.20%)and in 52 participants undergoing endoscopy(detection rate,0.48%).However,most gastric cancers detected by endoscopic screening were early cancers that may not have resulted in *** found no significant difference in gastric cancer mortality rate between participants receiving annual screening and those who do *** the number of gastric cancer deaths in the direct radiography group was set as 1 in the Cox proportional hazard analysis,the HR of gastric cancer death was 1.368(95%CI:0.7308-2.562)in the overall group of *** results showed no s

关键词： Gastric cancer Radiography Endoscopy Population-based cancer screening Mortality reduction

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