Masao Yoshida

Evaluation of Computer‐aided Detection for Identifying Missed Gastric Cancer After Endoscopic Submucosal Dissection

Tatsunori Minamide, Tomonori Sato, Seiichiro Sakaguchi, Noboru Kawata et autres

ABSTRACT Objectives Computer‐aided detection (CADe) using deep learning is promising for reducing missed gastric cancers (MGCs) and supporting physicians in double‐checking endoscopic images. We aimed to evaluate the CADe efficacy for MGCs after endoscopic submucosal dissection (ESD). Methods We collected 2324 endoscopic …

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Clinical utility of macroscopic on-site evaluation in EUS-guided tissue acquisition for autoimmune pancreatitis: A retrospective study

Takuya Doi, Hirotoshi Ishiwatari, Junya Sato, Akihiro Ohba et autres

Background and Objectives: Pathological diagnosis of autoimmune pancreatitis (AIP) is essential for selecting the appropriate treatment strategy. Although macroscopic on-site evaluation (MOSE) can reduce the number of needle passes during EUS-guided tissue acquisition (EUS-TA) in pancreatic neoplasms, its utility in AIP remains …

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Endoscopic Diagnosis and Treatment for Superficial Non‐Ampullary Duodenal Epithelial Tumors

Masao Yoshida

The widespread use of high-resolution and screening endoscopy has led to the increased detection of superficial non-ampullary duodenal epithelial tumors (SNADETs) in routine clinical practice. According to a national cancer registry analysis in Japan, many SNADETs are identified at an early localized …

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Response

Taishi Okumura, Kinichi Hotta, Kenichiro Imai, Sayo Ito et autres

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Assessment of Skeletal Muscle Quality via Intramuscular Adipose Tissue Content Predicts Surgical Morbidity and Prognosis After Pancreatoduodenectomy

Yutaka Suzuki, Masao Yoshida, Hideaki Mizuno, Saori Funakoshi et autres

OBJECTIVES: Sarcopenia is characterized by skeletal mass reduction and is associated with surgical morbidity and poor prognosis after pancreatoduodenectomy (PD). Sarcopenia diagnosis requires a combination of motor functional tests and skeletal muscle mass measurements. Conversely, intramuscular adipose tissue content (IMAC), an indicator …

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Minimally invasive retrograde esophageal endoscopic submucosal dissection via gastrostomy using a thin therapeutic endoscope

Tetsuhiko Hirai, Yoichi Yamamoto, Masao Yoshida, Noboru Kawata et autres

A 58-year-old woman with dysphagia was diagnosed with advanced esophageal cancer. She achieved complete response with definitive chemoradiotherapy, but cervical esophageal stenosis occurred ([ Fig. 1 ]). A percutaneous endoscopic gastrostomy was performed for nutritional support. Endoscopic balloon dilation was performed; however, …

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Safety Profile of Low‐Power Pure‐Cut Hot Snare Polypectomy for 10–14 mm Nonpedunculated Colorectal Neoplasms

Kazunori Takada, Hidenori Kimura, Kinichi Hotta, Kenichiro Imai et autres

Objectives: The reported rate of delayed bleeding (DB) after hot snare polypectomy (HSP) for 10-19-mm polyps is 2.1%-2.8%, which is non-negligible. We hypothesized that a low-power pure-cut current (LPPC) yields a lower risk of DB than a coagulation current, and we evaluated …

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Effect of the Insulated‐Tip Knife on Procedure Time in Endoscopic Submucosal Dissection for Colorectal Neoplasms: A Single‐Center, Randomized Controlled Trial (NANO Study)

Sayo Ito, Kinichi Hotta, Kenichiro Imai, Yoshihiro Kishida et autres

ABSTRACT Background and Aim The insulated‐tip (IT) knife nano is a high‐frequency electrosurgical knife designed to enhance the safety and efficiency of endoscopic submucosal dissection (ESD), particularly in anatomically narrow lumens such as the colorectum. Although it is commonly used in combination …

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Endoscopic features for differentiating sessile serrated lesion with dysplasia or carcinoma in serrated lesions ≥10 mm

Yoshihiro Kishida, Tadakazu Shimoda, Kinichi Hotta, Kenichiro Imai et autres

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Impact of tumor necrosis on comprehensive genomic profiling success in pancreatic cancer: a retrospective study

Takuya Doi, Hirotoshi Ishiwatari, Nobuyuki Ohike, Junya Sato et autres

OBJECTIVES: Pancreatic cancer frequently presents with tumor necrosis, which may influence the success of comprehensive genomic profiling in endoscopic ultrasound-guided tissue acquisition specimens. This study aimed to evaluate the relationship between tumor necrosis and comprehensive genomic profiling success. METHODS: This single-center retrospective …

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Author reply to letter to the editor: Beyond the ruler: Measuring what truly matters in EUS-guided pancreatic cancer genomics

Junya Sato, Hirotoshi Ishiwatari, Kazuma Ishikawa, Hiroki Sakamoto et autres

Letter to: Beyond the ruler: Measuring what truly matters in endoscopic ultrasound-guided pancreatic cancer genomics Endosc Int Open 2025; 13(CP): DOI: 10.1055/a-2677-0505 We are grateful to the authors of the Letter to the Editor for their thoughtful and constructive comments regarding our …

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Small Duodenal Adenocarcinoma with Peritoneal Dissemination Mimicking Duodenal Brunner’s Gland Hyperplasia

Masao Yoshida, Yoichi Yamamoto, Hiroyuki Ono

Introduction: Gastric-phenotype non-ampullary duodenal carcinomas are rare but potentially aggressive tumors. Case Presentation: A 52-year-old woman was referred for a duodenal polyp. Endoscopy revealed multiple duodenal bulb polyps suggestive of Brunner's gland hyperplasia. Histopathology confirmed well-differentiated tubular adenocarcinoma with submucosal invasion and …

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