{"title":"[Gastric-type adenocarcinoma consisting of signet-ring cell carcinoma and adenocarcinoma of the fundic gland type:a case report].","authors":"Tomoko Ochiai, Osamu Dohi, Yukiko Morinaga, Mayuko Seya, Hayato Fukui, Naoto Iwai, Hideyuki Konishi, Mitsuo Kishimoto, Eiichi Konishi, Yoshito Itoh","doi":"10.11405/nisshoshi.121.689","DOIUrl":"10.11405/nisshoshi.121.689","url":null,"abstract":"<p><p>After endoscopic treatment for esophageal cancer, a 65-year-old male underwent surveillance esophagogastroduodenoscopy. A 12-mm discolored flat lesion was noted on the greater curvature of the middle gastric body. Magnifying endoscopy with blue laser imaging demonstrated an irregular papillary surface. Biopsy revealed atypical cells with mucus and irregularly distributed nuclei. The lesion was diagnosed as a gastric-type neoplasm with low atypia. Thereafter, endoscopic submucosal dissection (ESD) was conducted and specimen was sent for biopsy. The ESD specimen suggested a signet-ring cell carcinoma with MUC5AC-positive phenotype and adenocarcinoma of the fundic gland type, with MUC6 positivity and pepsinogen I positivity in the shallow and deeper layers, respectively. Moreover, the cervical region of fundic glands demonstrated a transformation zone of the signet-ring cell carcinoma into an adenocarcinoma of the fundic gland type. Herein, we report this rare case along with a literature review.</p>","PeriodicalId":35808,"journal":{"name":"Japanese Journal of Gastroenterology","volume":"121 8","pages":"689-694"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141972012","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":"[Amputation neuroma with a difficult differential diagnosis from perihilar cholangiocarcinoma:a case report].","authors":"Shinya Yamaga, Naotaka Kugiyama, Shunpei Hashigo, Katsuya Nagaoka, Rin Yamada, Shinya Ushijima, Yukiko Uramoto, Motohiro Yoshinari, Hideaki Naoe, Yasuhito Tanaka","doi":"10.11405/nisshoshi.121.842","DOIUrl":"10.11405/nisshoshi.121.842","url":null,"abstract":"<p><p>Biliary amputation neuroma is a rare benign tumor that develops due to the peribiliary dissection of nerve fibers during cholecystectomy, a common bile duct surgery, or lymph node dissection performed in gastric cancer surgery. We report a case of amputation neuroma that presented a challenging differential diagnosis from perihilar cholangiocarcinoma. A 64-year-old man, who had undergone open cholecystectomy 30 years ago, was incidentally found to have a bile duct tumor during computed tomography (CT) following surgery for renal cell carcinoma. He had no specific symptoms, and blood test results showed only a slight elevation in alkaline phosphatase levels. Contrast-enhanced CT revealed a 10-mm solid tumor with contrast effect in the common bile duct. On cholangiography, the tumor appeared as a protruding lesion with a smooth surface unilaterally. Given the atypical findings suggestive of cholangiocarcinoma, three bile duct biopsies were performed. Pathological examination did not rule out adenocarcinoma. The patient opted for surgery;however, an intraoperative rapid histological examination confirmed a benign disease, thereby avoiding extensive surgery. Consequently, a minimally invasive bile duct resection was performed. Postoperative histopathological examination revealed the tumor to be an amputation neuroma. Biliary amputation neuromas are characterized as unilateral protruding lesions with contrast effect or benign strictures. If such findings are observed in a patient with a history of surgery around the bile duct, the possibility of an amputation neuroma should be considered. However, completely ruling out malignancy preoperatively, even when suspecting amputation neuroma, can be challenging;therefore, considering surgery to achieve a definitive diagnosis is reasonable. During surgery, a rapid intraoperative histological examination is useful to avoid extensive procedures. In conclusion, diagnosing an amputation neuroma before surgery can be difficult, as it can mimic malignant tumors such as bile duct cancers. In this case, although a preoperative diagnosis of amputation neuroma was not feasible, performing a rapid intraoperative pathological examination helped avoid extensive surgery.</p>","PeriodicalId":35808,"journal":{"name":"Japanese Journal of Gastroenterology","volume":"121 10","pages":"842-850"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142393914","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":"[Treatment of hepatocellular carcinoma and risk of decompensation and liver failure].","authors":"Tatsuya Minami, Ryosuke Tateishi, Mitsuhiro Fujishiro","doi":"10.11405/nisshoshi.121.723","DOIUrl":"https://doi.org/10.11405/nisshoshi.121.723","url":null,"abstract":"","PeriodicalId":35808,"journal":{"name":"Japanese Journal of Gastroenterology","volume":"121 9","pages":"723-728"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142297253","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":"[Ulcerative colitis diagnosed with facial pyoderma gangrenosum: a case report].","authors":"Yudai Ogata, Atsuko Soeda, Isao Saura, Emi Nemoto, Yoshitaka Tange, Chiaki Enami, Daisuke Ochi, Yuichi Dai, Shintaro Akiyama, Kazuto Ikezawa","doi":"10.11405/nisshoshi.121.481","DOIUrl":"10.11405/nisshoshi.121.481","url":null,"abstract":"<p><p>Pyoderma gangrenosum (PG) is a sterile inflammatory skin condition that is frequently associated with immune-related diseases, including inflammatory bowel disease (IBD). PG causes noninfectious ulcers. Facial PG is uncommon while PG usually occurs on the trunk and lower limbs. Herein, we report a case of a male teenager with fever, pustules, ulcers, and necrosis on both cheeks. He was initially diagnosed with complicated acne with bacterial infection, but the condition progressed to subcutaneous ulcers despite treatment. Biopsy revealed inflammatory lesions in dermal and subcutaneous tissue with neutrophil infiltration, consistent with PG. Although lacking typical IBD symptoms, blood tests revealed anemia and positive fecal occult blood. Sigmoidoscopy revealed inflammation, ulcers, and pseudopolyps in the colon and rectum, thereby diagnosing ulcerative colitis (UC). After treating PG and UC with prednisolone and skin grafts, golimumab was prescribed. The patient is now in remission. Necrotic tissue buildup can complicate closure in PG cases;this emphasizes the need for effective IBD treatment to facilitate procedures such as skin grafts.</p>","PeriodicalId":35808,"journal":{"name":"Japanese Journal of Gastroenterology","volume":"121 6","pages":"481-488"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141296839","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":"[Gallbladder carcinosarcoma associated with pancreaticobiliary maljunction with biliary dilation:a case report].","authors":"Moeka Watahiki, Junichi Kaneko, Ryota Kiuchi, Daijiro Suzuki, Toshikatsu Kosugi, Daisuke Kusama, Hiroki Tamakoshi, Tomoyuki Niwa, Masaki Takinami, Atsushi Tsuji, Masafumi Nishino, Yurimi Takahashi, Osamu Jindo, Atsuko Fukazawa, Yuzo Sasada, Takanori Yamada, Takanori Sakaguchi","doi":"10.11405/nisshoshi.121.505","DOIUrl":"10.11405/nisshoshi.121.505","url":null,"abstract":"<p><p>A 68-year-old female patient was referred to our hospital with acute cholangitis. Computed tomography revealed common bile duct dilatation, gallbladder fundal tumor, and gallbladder wall thickening attached to the tumor. Cholangiography revealed pancreaticobiliary maljunction with biliary dilation. The patient was diagnosed with pancreaticobiliary maljunction with biliary dilation and gallbladder cancer and underwent liver S4b+5 and bile duct resection and reconstruction. Pathological results revealed that the gallbladder fundal tumor included sarcoma, and the gallbladder wall thickening had adenocarcinoma;thus, the patient was diagnosed with gallbladder carcinosarcoma.</p>","PeriodicalId":35808,"journal":{"name":"Japanese Journal of Gastroenterology","volume":"121 6","pages":"505-513"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141296905","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":"[Pathological features of IBD-associated neoplasia].","authors":"Takashi Yao, Soh Okano, Makoto Kodama","doi":"10.11405/nisshoshi.121.875","DOIUrl":"https://doi.org/10.11405/nisshoshi.121.875","url":null,"abstract":"","PeriodicalId":35808,"journal":{"name":"Japanese Journal of Gastroenterology","volume":"121 11","pages":"875-881"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142629624","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 aortic thrombus during chemotherapy for esophageal cancer].","authors":"Yuichi Tahara, Akira Hashimoto, Hirono Owa, Takahiro Ono, Naoki Kuroda, Masatoshi Aoki, Hiroyuki Fuke, Hiroyuki Kawabata, Yoshihiro Wakita, Atsuya Shimizu","doi":"10.11405/nisshoshi.121.212","DOIUrl":"10.11405/nisshoshi.121.212","url":null,"abstract":"<p><p>A 59-year-old man presented to our hospital with a chief complaint of epigastric pain. Pertinent history included a distal gastrectomy for gastric cancer and alcohol dependence. He underwent contrast-enhanced computed tomography (CT) and esophagogastroduodenoscopy, which led to a diagnosis of esophageal cancer (cT2N2M1, stage IVb). Subsequently, he underwent chemotherapy using 5-fluorouracil and cis-diamminedichloroplatinum and radiotherapy. A total of 44 days after treatment initiation, the patient experienced nausea and hepatobiliary enzyme elevation. CT and abdominal ultrasonography were performed, and he was diagnosed with an abdominal aortic thrombus. Intravenous heparin was administered as an anticoagulant therapy. Twenty-two days after treatment initiation, the thrombus was no longer visible on abdominal ultrasonography. The patient was then treated with warfarin. It cannot be ruled out that the patient's hepatobiliary enzyme elevation was induced by the anticancer drugs. However, enzyme elevation improved with the disappearance of the abdominal aortic thrombus, suggesting that the aortic thrombus may have contributed to the hepatobiliary enzyme elevation. No thrombus recurrence was observed until the patient's death after an initial treatment with antithrombotic agents. This case indicates that malignant tumors and chemotherapy can cause aortic thrombi, and thus, care should be exercised in monitoring this potential complication.</p>","PeriodicalId":35808,"journal":{"name":"Japanese Journal of Gastroenterology","volume":"121 3","pages":"212-220"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140094755","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":"[Current status and issues of colorectal cancer screening - toward the introduction of colonoscopy into the population-based screening program].","authors":"Takahisa Matsuda, Masau Sekiguchi, Nozomu Kobayashi","doi":"10.11405/nisshoshi.121.177","DOIUrl":"10.11405/nisshoshi.121.177","url":null,"abstract":"","PeriodicalId":35808,"journal":{"name":"Japanese Journal of Gastroenterology","volume":"121 3","pages":"177-185"},"PeriodicalIF":0.0,"publicationDate":"2024-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140094760","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}