{"title":"[The role of imaging in stratified management of ulcerative colitis:a focus on intestinal ultrasound].","authors":"Jun Miyoshi, Hiromu Morikubo, Tadakazu Hisamatsu","doi":"10.11405/nisshoshi.123.456","DOIUrl":"https://doi.org/10.11405/nisshoshi.123.456","url":null,"abstract":"","PeriodicalId":35808,"journal":{"name":"Japanese Journal of Gastroenterology","volume":"123 7","pages":"456-465"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148431119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Invasive carcinoma derived from a branch-duct intraductal papillary mucinous neoplasm without mural nodules that developed after a long-term follow-up: a case report and review of literature].","authors":"Yosei Sawai, Shinsuke Koshita, Yoshihide Kanno, Takahisa Ogawa, Masaya Oikawa, Takashi Tsuchiya, Yutaka Noda, Takashi Sawai, Kei Ito","doi":"10.11405/nisshoshi.123.491","DOIUrl":"https://doi.org/10.11405/nisshoshi.123.491","url":null,"abstract":"<p><p>A 71-year-old woman underwent semiannual imaging studies including endoscopic ultrasonography (EUS) for branch-duct intraductal papillary mucinous neoplasms (IPMNs) over approximately 11 years of follow-up after her first visit. EUS detected a hypoechoic region adjacent to a 25-mm diameter IPMN without mural nodules in the pancreatic body, and endoscopic ultrasound-guided tissue acquisition of the hypoechoic region confirmed adenocarcinoma. Distal pancreatectomy was performed, and histological examination of the resected specimens revealed invasive ductal adenocarcinoma adjacent to the cystic lesion lined by low papillary atypical epithelium. Despite the absence of mural nodules, this invasive carcinoma was considered to have originated from the adjacent IPMN.</p>","PeriodicalId":35808,"journal":{"name":"Japanese Journal of Gastroenterology","volume":"123 7","pages":"491-498"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148431143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[Personalized and stratified therapy in ulcerative colitis:what is feasible at present and how far have we advanced?]","authors":"Hiroshi Nakase","doi":"10.11405/nisshoshi.123.441","DOIUrl":"https://doi.org/10.11405/nisshoshi.123.441","url":null,"abstract":"","PeriodicalId":35808,"journal":{"name":"Japanese Journal of Gastroenterology","volume":"123 7","pages":"441-445"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148431173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[A case of eosinophilic granulomatosis with polyangiitis presenting with characteristic endoscopic findings in the esophagus and stomach].","authors":"Katsuma Yamauchi, Tomohiro Ueda, Kazuhiro Tsuji, Yasutaka Morimoto, Akiko Shibuya, Tomoyuki Ohno, Tomoki Nakajima, Eiichi Konishi, Norimasa Yoshida, Yoshito Itoh","doi":"10.11405/nisshoshi.123.484","DOIUrl":"10.11405/nisshoshi.123.484","url":null,"abstract":"<p><p>A woman in her 60s presented with abdominal pain and diarrhea. She had a history of asthma and sinusitis and developed a skin rash and numbness in the lower extremities. Laboratory tests revealed marked eosinophilia, leading to a diagnosis of eosinophilic granulomatosis with polyangiitis (EGPA). Esophagogastroduodenoscopy showed longitudinal erosion in the thoracic esophagus and mucosal color changes ranging from pale to bronze tones in the stomach, extending from the antrum to the angular region. These changes became more evident with insufflation and were not accompanied by inflammatory changes in the mucosa. Given the rarity of reports of esophageal and gastric involvement in EGPA, and to our knowledge, no case has demonstrated insufflation-dependent mucosal changes, this case is noteworthy.</p>","PeriodicalId":35808,"journal":{"name":"Japanese Journal of Gastroenterology","volume":"123 7","pages":"484-490"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148431202","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[A case of ulcerative colitis with recurrence and new-onset extraintestinal manifestations during treatment for refractory proctitis and pouchitis after ileal pouch-anal anastomosis].","authors":"Kyoka Ozawa, Makoto Tanaka, Tetsuhisa Ko, Yutaka Inada, Yoshikazu Nakatsugawa, Naoya Tomatsuri, Hideki Sato, Yoji Urata, Riichiro Nezu, Yusuke Okuyama","doi":"10.11405/nisshoshi.123.369","DOIUrl":"10.11405/nisshoshi.123.369","url":null,"abstract":"<p><p>A female patient in her late 20s, with a history of ulcerative colitis since adolescence, underwent ileoanal canal anastomosis for ulcerative colitis. She developed diarrhea, rectal pain, and pyoderma gangrenosum and underwent resection of the remaining rectum and ileal pouch-anal anastomosis. One year postoperatively, she developed ileocolitis, left sacroiliitis, and right dorsal foot pain, which were diagnosed as extraintestinal manifestations, and adalimumab was effective. The patient should be introduced to biologic agents at an earlier stage, considering the possibility of flare-ups or the emergence of new extraintestinal complications when inflammation is present in the residual postoperative rectal mucosa and ileocecal sac.</p>","PeriodicalId":35808,"journal":{"name":"Japanese Journal of Gastroenterology","volume":"123 5","pages":"369-375"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147933991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"[A case of recurrent liver metastasis from a rectal neuroendocrine tumor 9 years after endoscopic resection].","authors":"Shotaro Akiba, Takumi Hanatani, Hidekazu Horiuchi, Kazuo Okumoto, Shigemi Hachinohe","doi":"10.11405/nisshoshi.123.284","DOIUrl":"10.11405/nisshoshi.123.284","url":null,"abstract":"<p><p>The patient was an 82-year-old woman who underwent endoscopic submucosal dissection for a 10mm neuroendocrine tumor (NET) in her rectum at 72 years of age. For the first 7 years, she remained free of recurrence;however, at a follow-up examination 9 years after the procedure, multiple liver tumors were detected. No recurrence was noted in the rectum. A liver biopsy revealed a dense proliferation of small cells, consistent with the findings of the original NET, leading to a diagnosis of recurrence. Currently, she is receiving treatment with lutetium-labeled octreotide. Although the guidelines regarding the optimal follow-up duration after treatment for rectal NET remain unclear, long-term surveillance is considered necessary.</p>","PeriodicalId":35808,"journal":{"name":"Japanese Journal of Gastroenterology","volume":"123 4","pages":"284-290"},"PeriodicalIF":0.0,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147677369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}