Results 221 to 230 of about 1,552,951 (302)

Endoscopic findings of gallbladder lesions evaluated with image‐enhanced endoscopy: A preliminary study using resected gallbladders

DEN Open, Volume 6, Issue 1, April 2026.
Abstract The diagnosis of gallbladder (GB) lesions relies on imaging findings. Transpapillary cholangioscopy can potentially be used to diagnose GB lesions; however, the images obtained remain unclear. This study aimed to characterize the endoscopic findings of GB lesions. We examined the endoscopic features of GB lesions in 50 consecutive patients who
Kiyoyuki Kobayashi, Maki Ayaki, Takako Nomura, Kaho Nakatani, Masaki Tokumo, Yasutaka Kokudo, Toshiaki Morito, Ichiro Ishikawa, Akihiro Kondo, Yasuhisa Ando, Hironobu Suto, Minoru Oshima, Ryota Nakabayashi, Toshiaki Kono, Naoki Fujita, Hiroki Yamana, Hideki Kamada, Masafumi Ono, Keiichi Okano, Hideki Kobara   +19 more
wiley   +1 more source

Prognostic factors and long‐term outcomes with endoscopic submucosal dissection for colorectal tumors in patients aged 75 years or older

DEN Open, Volume 6, Issue 1, April 2026.
Abstract Background Studies regarding the long‐term outcomes of endoscopic submucosal dissection (ESD) performed in older patients with colorectal tumors are limited. Therefore, in this study, we aimed to analyze the long‐term outcomes of older patients with colorectal tumors who underwent ESD and identify prognostic factors.
Takaya Miura, Satohiro Matsumoto, Azumi Sato, Shu Kojima, Goya Sasaki, Mina Morino, Keita Matsumoto, Hitomi Kashima, Yudai Koito, Takehiro Ishii, Shuhei Yoshikawa, Haruka Otake, Takeshi Uehara, Masanari Sekine, Takeharu Asano, Hiroyuki Miyatani, Hirosato Mashima   +16 more
wiley   +1 more source

Endoscopic Retrograde Cholangiopancreatography‐guided Biliary Drainage with Duckbill‐type Anti‐reflux Metal Stent versus Endoscopic Ultrasound‐guided Hepaticogastrostomy for Malignant Distal Biliary Obstruction in Pancreatic Cancer with Duodenal Invasion

DEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT Background Duodenal invasion is a risk factor for early recurrent biliary obstruction (RBO) due to the increased risk of duodenobiliary reflux. Transpapillary biliary drainage using anti‐reflux metal stents (ARMS) and endoscopic ultrasound‐guided hepaticogastrostomy (EUS‐HGS) are two different strategies for this condition.
Tsuyoshi Takeda, Takashi Sasaki, Tatsuki Hirai, Yoichiro Sato, Yuri Maegawa, Takafumi Mie, Takaaki Furukawa, Yukari Suzuki, Takeshi Okamoto, Masato Ozaka, Naoki Sasahira   +10 more
wiley   +1 more source

Natural History of Duodenal Adenoma: An 11‐year Follow‐up

DEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT Early detection and treatment are essential to decrease the mortality rate of duodenal cancer (DC). However, the natural history of DC remains unclear. A 78‐year‐old woman underwent screening esophagogastroduodenoscopy (EGD) before surgery for advanced colon cancer.
Hikaru Kuribara, Naomi Kakushima, Hiroyuki Hisada, Yosuke Tsuji, Akihiko Ichida, Kiyoshi Hasegawa, Junichi Nawa, Tetsuo Ushiku, Mitsuhiro Fujishiro   +8 more
wiley   +1 more source

Electrolyte Depletion Syndrome due to a 28 cm Rectal Villous Tumor: Successful Endoscopic Resection of One of the Largest Tumors Reported to Date—A Case Report

DEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT Electrolyte depletion syndrome (EDS), also known as McKittrick–Wheelock syndrome, is a rare but life‐threatening condition caused by secretory diarrhea from colorectal villous tumors, often accompanied by severe electrolyte imbalances and renal dysfunction.
Toshifumi Iida, Hideyuki Chiba, Ai Hirohata, Akimichi Hayashi, Yu Ebisawa, Jun Arimoto, Hiroki Kuwabara, Michiko Nakaoka, Ken Ohata   +8 more
wiley   +1 more source

Gastric Foveolar‐Type Hyperplastic Polyp of the Duodenum With GNAS and KRAS Mutations: A Potential Precursor to Neoplasia

DEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT We report a gastric foveolar‐type hyperplastic polyp of the duodenum harboring mutations in the GNAS and KRAS genes. The lesion was incidentally detected during a routine upper gastrointestinal endoscopy in a man in his 50s. It appeared as a 10‐mm elevated lesion located at the superior duodenal angle.
Kenji Yamazaki, Ryoji Kushima, Noritaka Ozawa, Haruka Koizumi, Saeka Hayashi, Atsushi Soga, Koji Yamashita, Shogo Shimizu, Masahito Shimizu   +8 more
wiley   +1 more source

Diagnostic Performance of Magnifying Endoscopy With Crystal Violet Staining for Superficial Non‐ampullary Duodenal Epithelial Tumors: A Single‐center Prospective Study

DEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT Objectives We previously reported a potential diagnostic algorithm for superficial non‐ampullary duodenal epithelial tumors (SNADETs) using white‐light magnifying endoscopy with crystal violet staining (ME‐CV). This study aimed to determine the diagnostic performance of the scheme and compare it with the conventional white‐light endoscopy (WLE)
Tomo Kumei, Yosuke Toya, Shun Yamada, Makoto Eizuka, Shunichi Yanai, Masaki Endo, Ryo Sugimoto, Noriyuki Uesugi, Tamotsu Sugai, Naoki Yanagawa, Fumiaki Takahashi, Takayuki Matsumoto   +11 more
wiley   +1 more source

Distal Bile Duct Metastasis From Rectal Cancer: The Diagnostic Contribution of Intraductal Ultrasonography

DEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT A 49‐year‐old male developed liver dysfunction during chemotherapy for rectal cancer located in the rectosigmoid region. Although magnetic resonance cholangiopancreatography initially indicated sclerosing cholangitis, endoscopic retrograde cholangiopancreatography and intraductal ultrasonography revealed multiple non‐contiguous intraductal ...
Shinji Monoe, Ryo Nishio, Arihiro Nakano, Yu Yasue, Takahiro Yamashita, Hitoshi Iwata   +5 more
wiley   +1 more source

Needle Tract Seeding Following Transgastric Endoscopic Ultrasound‐Fine Needle Aspiration for Pancreatic Tail Cancer: A Case Report

DEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT We report the case of a 69‐year‐old man with a branch‐duct intraductal papillary mucinous neoplasm who underwent surveillance endoscopic ultrasound (EUS), which revealed a 15 mm hypoechoic mass in the pancreatic tail. Transgastric EUS‐guided fine needle aspiration (FNA) confirmed a diagnosis of resectable pancreatic ductal adenocarcinoma ...
Hidetaka Kuroda, Takuji Iwashita, Yosuke Ohashi, Shota Iwata, Ryuichi Tezuka, Shinya Uemura, Katsutoshi Murase, Nobuhisa Matsuhashi, Tatsuhiko Miyazaki, Masahito Shimizu   +9 more
wiley   +1 more source

A Clinical Scoring Model to Predict Post‐Endoscopic Retrograde Cholangiopancreatography Pancreatitis in Biliary Endoscopic Retrograde Cholangiopancreatography for Patients With Intact Papilla: A Large Multicenter Prospective Cohort Study

DEN Open, Volume 6, Issue 1, April 2026.
ABSTRACT Objectives The risk of post‐endoscopic retrograde cholangiopancreatography (ERCP) pancreatitis (PEP) needs to be predicted in order to take adequate preventive measures in individual cases. The aim of this study was to develop a clinical prediction rule for PEP in biliary ERCP for patients with intact papilla.
Koichi Fujita, Shujiro Yazumi, Hisakazu Matsumoto, Masanori Asada, Hiroko Nebiki, Keiji Hanada, Kazuya Matsumoto, Toru Maruo, Mamoru Takenaka, Hideki Kamada, Chishio Noguchi, Hidefumi Nishikiori, Toshifumi Doi, Teru Kumagi, Takao Iemoto, Nobuaki Azemoto, Takashi Kawamura, Hirofumi Kawamoto, for the Bilio‐pancreatic Study Group of West Japan   +18 more
wiley   +1 more source