研究者詳細 - 岩室　雅也

論文 - 岩室　雅也

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Endoscopic and clinical features of gastric emphysema. 国際誌

Masaya Iwamuro, Ryuta Takenaka, Tatsuya Toyokawa, Masahide Kita, Takao Tsuzuki, Masao Yoshioka, Tatsuhiro Gotoda, Shotaro Okanoue, Minoru Matsubara, Chihiro Sakaguchi, Motoyuki Otsuka

Scientific reports 14 ( 1 ) 2202 - 2202 2024年1月

記述言語：英語掲載種別：研究論文（学術雑誌）

Gastric emphysema is characterized by the presence of intramural gas in the stomach without bacterial infection. Due to its rarity, most reports on gastric emphysema have been limited to single-case studies, and this condition's clinical and endoscopic features have not been thoroughly investigated. In this study, we analyzed 45 patients with gastric emphysema from 10 institutions and examined their characteristics, endoscopic features, and outcomes. The mean age at diagnosis of gastric emphysema in our study population (35 males and 10 females) was 68.6 years (range, 14-95 years). The top five underlying conditions associated with gastric emphysema were the placement of a nasogastric tube (26.7%), diabetes mellitus (20.0%), post-percutaneous endoscopic gastrostomy (17.8%), malignant neoplasms (17.8%), and renal failure (15.6%). Among the 45 patients, 42 were managed conservatively with fasting and administration of proton pump inhibitors. Unfortunately, seven patients died within 30 days of diagnosis, and 35 patients experienced favorable recoveries. The resolution of gastric emphysema was confirmed in 30 patients through computed tomography (CT) scans, with a mean duration of 17.1 ± 34.9 days (mean ± standard deviation [SD], range: 1-180 days) from the time of diagnosis to the disappearance of the gastric intramural gas. There were no instances of recurrence. Endoscopic evaluation was possible in 18 patients and revealed that gastric emphysema presented with features such as redness, erosion, coarse mucosa, and ulcers, with fewer mucosal injuries on the anterior wall (72.2%), a clear demarcation between areas of mucosal injury and intact mucosa (61.1%), and predominantly longitudinal mucosal injuries on the stomach folds (50.0%). This study is the first English-language report to analyze endoscopic findings in patients with gastric emphysema.

DOI： 10.1038/s41598-024-52633-z

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Clinical significance of gastrointestinal bleeding history in patients who undergo left atrial appendage closure. 国際誌

Tatsuya Kikuchi, Yoshiyasu Kono, Koji Nakagawa, Hiroyuki Okada, Masakazu Miyamoto, Yoichi Takaya, Shoichiro Hirata, Shoko Inoo, Sakiko Kuraoka, Shotaro Okanoue, Katsunori Matsueda, Takuya Satomi, Kenta Hamada, Masaya Iwamuro, Seiji Kawano, Yoshiro Kawahara

JGH open : an open access journal of gastroenterology and hepatology 8 ( 1 ) e13009 2024年1月

記述言語：英語掲載種別：研究論文（学術雑誌）

BACKGROUND AND AIM: Anticoagulant users with nonvalvular atrial fibrillation (NVAF) sometimes suffer from gastrointestinal bleeding (GIB) and have difficulty continuing the medication. Left atrial appendage closure (LAAC) has been developed for such situations. We aimed to clarify the clinical significance of a history of GIB in comparison to other factors in patients who had undergone LAAC. METHODS: From October 2019 to September 2023, patients with NVAF who underwent LAAC at our hospital were enrolled. We investigated the percentage of patients with a history of GIB who underwent LAAC and compared the incidence of post-LAAC bleeding in these patients compared to those with other factors. RESULTS: A total of 45 patients were included. There were 19 patients (42%) with a history of GIB who underwent LAAC. In a Kaplan-Meier analysis, the cumulative incidence of bleeding complications after LAAC was significantly higher in patients with a history of GIB in comparison to patients with other factors. There were eight cases of post-LAAC bleeding in total, and seven cases had GIB. CONCLUSIONS: We need to recognize that GIB is a significant complication in patients who undergo LAAC. The management of GIB by gastroenterologists is essential to the success of LAAC.

DOI： 10.1002/jgh3.13009

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[Small intestinal perforation manifesting as post-transplant lymphoproliferative disorder occurring 23 years after living lung transplantation: a case report].

Daisuke Kametaka, Masaya Iwamuro, Shoko Inoo, Seiji Kawano, Takehiro Tanaka, Yoshiro Kawahara, Motoyuki Otsuka

Nihon Shokakibyo Gakkai zasshi = The Japanese journal of gastro-enterology 121 ( 11 ) 896 - 903 2024年

記述言語：日本語掲載種別：研究論文（学術雑誌）

A Japanese female patient underwent a living lung transplant at age 29 and has been on immunomodulatory drug therapy since then. At age 52, she presented with sudden hematochezia. Despite abdominal computed tomography scan, esophagogastroduodenoscopy, and colonoscopy, no definitive source of bleeding was identified. Considering the possibility of small bowel bleeding, video capsule endoscopy was performed, which revealed a suspected ulcerative lesion in the jejunum. Subsequent per-oral double-balloon endoscopy confirmed the presence of an ulcerative lesion in the jejunum. A potential pathological diagnosis of post-transplant lymphoproliferative disorder (PTLD) was considered based on endoscopic biopsy specimens from the jejunal lesion. However, before the pathologic biopsy results were available, the patient experienced small intestinal perforation, necessitating emergency partial resection. Pathologic examination revealed a dense proliferation of medium-to-large atypical lymphocytes with neutrophilic infiltration in the perforated area of the small intestinal wall. Immunostaining showed lymphoid cells positive for CD20 but negative for CD3. Epstein-Barr virus (EBV) -encoded RNA was detected by in situ hybridization, and Ki-67 staining demonstrated a higher percentage of positive cells. Consequently, an EBV-positive diffuse large B-cell lymphoma, developed as PTLD, was diagnosed. Complete remission was achieved with a reduced immunomodulatory drug dosage and rituximab therapy. She has been alive for 8 months postoperatively without recurrence. This case suggests that PTLD should be considered in assessing patients presenting with abdominal symptoms following organ transplantation.

DOI： 10.11405/nisshoshi.121.896

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Successful use of dupilumab for egg-induced eosinophilic gastroenteritis with duodenal ulcer: a pediatric case report and review of literature. 国際誌

Mitsuru Tsuge, Kenji Shigehara, Kazuhiro Uda, Seiji Kawano, Masaya Iwamuro, Yukie Saito, Masato Yashiro, Masanori Ikeda, Hirokazu Tsukahara

Allergy, asthma, and clinical immunology : official journal of the Canadian Society of Allergy and Clinical Immunology 19 ( 1 ) 103 - 103 2023年12月

記述言語：英語掲載種別：研究論文（学術雑誌）

BACKGROUND: Non-esophageal eosinophilic gastrointestinal disorder (non-EoE-EGID) is a rare disease in which eosinophils infiltrate parts of the gastrointestinal tract other than the esophagus; however, the number of patients with non-EoE-EGID has been increasing in recent years. Owing to its chronic course with repeated relapses, it can lead to developmental delays due to malnutrition, especially in pediatric patients. No established treatment exists for non-EoE-EGID, necessitating long-term systemic corticosteroid administration. Although the efficacy of dupilumab, an anti-IL-4/13 receptor monoclonal antibody, for eosinophilic esophagitis, has been reported, only few reports have demonstrated its efficacy in non-EoE EGIDs. CASE PRESENTATION: A 13-year-old boy developed non-EoE-EGID with duodenal ulcers, with chicken eggs as the trigger. He was successfully treated with an egg-free diet, proton pump inhibitors, and leukotriene receptor antagonists. However, at age 15, he developed worsening upper abdominal pain and difficulty eating. Blood analysis revealed eosinophilia; elevated erythrocyte sedimentation rate; and elevated levels of C-reactive protein, total immunoglobulin E, and thymic and activation-regulated chemokines. Upper gastrointestinal endoscopy revealed a duodenal ulcer with marked mucosal eosinophilic infiltration. Gastrointestinal symptoms persisted even after starting systemic steroids, making it difficult to reduce the steroid dose. Subcutaneous injection of dupilumab was initiated because of comorbid atopic dermatitis exacerbation. After 3 months, the gastrointestinal symptoms disappeared, and after 5 months, the duodenal ulcer disappeared and the eosinophil count decreased in the mucosa. Six months later, systemic steroids were discontinued, and the duodenal ulcer remained recurrence-free. The egg challenge test result was negative; therefore, the egg-free diet was discontinued. Blood eosinophil count and serum IL-5, IL-13, and eotaxin-3 levels decreased after dupilumab treatment. The serum levels of IL-5 and eotaxin-3 remained within normal ranges, although the blood eosinophil counts increased again after discontinuation of oral prednisolone. CONCLUSIONS: Suppression of IL-4R/IL-13R-mediated signaling by dupilumab may improve abdominal symptoms and endoscopic and histologic findings in patients with non-EoE-EGID, leading to the discontinuation of systemic steroid administration and tolerance of causative foods.

DOI： 10.1186/s13223-023-00859-3

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A Case of Gastric Mucosa-associated Lymphoid Tissue Lymphoma that Relapsed after 11 Years Subsequent to Achieving Complete Remission. 査読

Shoko Inoo, Masaya Iwamuro, Takehiro Tanaka, Yoshiro Kawahara, Motoyuki Ootuka

Internal medicine (Tokyo, Japan) 2023年11月

記述言語：英語掲載種別：研究論文（学術雑誌）

A 38-year-old Japanese man was diagnosed with extranodal marginal zone lymphoma of the mucosa-associated lymphoid tissue in the stomach (gastric MALT lymphoma). Fluorescence in situ hybridization analysis revealed the absence of t (11;18) (q21;q21) translocation but the presence of extra copies of MALT1, indicating tetrasomy 18. Helicobacter pylori eradication led to complete remission (CR). However, the gastric MALT lymphoma relapsed after 11 years old. This case underscores the need for long-term observation (>10 years) of patients with gastric MALT lymphoma. Further investigation is warranted to elucidate the correlation between trisomy/tetrasomy 18 and the recurrence propensity.

DOI： 10.2169/internalmedicine.2642-23

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An Unusual Case of Gastric Polyposis. 査読国際誌

Masaya Iwamuro, Seiji Kawano, Motoyuki Otsuka

Gastroenterology 165 ( 5 ) 1110 - 1113 2023年11月

食道造影での同期性収縮とCTでの食道壁肥厚が診断の一助となったJackhammer esophagusの一例

金晟烈, 里見拓也, 平田翔一郎, 濱田健太, 榮浩行, 杉原雄策, 眞部紀明, 神尾知宏, 平井亮佑, 小橋真由, 亀高大介, 松枝克典, 稲生祥子, 河野吉泰, 岩室雅也, 川野誠司, 河原祥朗

日本消化器病学会中国支部例会・日本消化器内視鏡学会中国支部例会プログラム・抄録集 120回・131回 97 - 97 2023年11月

短期間で急速に進行し、根治外科切除を行うも遠隔転移再発を来した十二指腸癌の一例

渋谷香苗, 河野吉泰, 神尾知宏, 平田翔一郎, 倉岡紗樹子, 稲生祥子, 里見拓也, 松枝克典, 濱田健太, 岩室雅也, 川野誠司, 河原祥朗, 高木弘誠, 楳田祐三, 田中健大, 大塚基之

日本消化器病学会中国支部例会・日本消化器内視鏡学会中国支部例会プログラム・抄録集 120回・131回 75 - 75 2023年11月

Optimal Bowel Preparation Method to Visualize the Distal Ileum via Small Bowel Capsule Endoscopy. 査読国際誌

Daisuke Kametaka, Mamoru Ito, Seiji Kawano, Shuhei Ishiyama, Akiko Fujiwara, Junichirou Nasu, Masao Yoshioka, Junji Shiode, Kazuhide Yamamoto, Masaya Iwamuro, Yoshiro Kawahara, Hiroyuki Okada, Motoyuki Otsuka

Diagnostics (Basel, Switzerland) 13 ( 20 ) 2023年10月

記述言語：英語掲載種別：研究論文（学術雑誌）

Small bowel capsule endoscopy (SBCE) is a convenient and minimally invasive method widely used to evaluate the small intestine. However, especially in the distal ileum, visualization of the intestinal mucosa is frequently hampered by the remaining intestinal contents, making it difficult to detect critical lesions. Although several studies have reported on the efficacy of bowel preparation before SBCE, no standardized protocol has been established. Herein, we determined the optimal preparation method for better visualization of the distal ileum using SBCE. We retrospectively analyzed 259 consecutive patients who had undergone SBCE between July 2009 and December 2019, divided into three groups: Group A (no preparation except overnight fasting), Group B (ingestion of 1-2 L polyethylene glycol 4 h before colonoscopy after overnight fasting and performing SBCE immediately after colonoscopy), and Group C (ingestion of 0.9 L magnesium citrate [MC] before SBCE after overnight fasting). The visibility of the intestinal mucosa in the first 10 min and at the last 10 min during the period of observation of the distal ileum was examined using a scoring system and compared. The visibility of the images captured by SBCE was assessed based on the scoring of the degree of bile/chyme staining, residual fluid and debris, brightness, bubble reduction, and visualized mucosa. The status of intestinal collapse was also assessed. In the first 10 min of observation of the distal ileum, no significant differences were detected among the groups. In the last 10 min, significantly better images were acquired in Group C in terms of bile/chyme staining, brightness, bubble reduction, and visualized mucosa. Bowel preparation using a low-dose MC solution 2 h before SBCE provided significantly higher-quality images of the distal ileum. Further optimization, such as the timing of initiating the preparation, is necessary to determine the optimal regimen for bowel preparation prior to SBCE.

DOI： 10.3390/diagnostics13203269

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Idiopathic Gastric Antral Ulcers. 査読

Masaya Iwamuro, Takehiro Tanaka, Seiji Kawano, Yoshiro Kawahara, Motoyuki Otsuka

Internal medicine (Tokyo, Japan) 2023年10月

担当区分：筆頭著者,　責任著者記述言語：英語掲載種別：研究論文（学術雑誌）

A Japanese woman presented with gastric antral ulcers accompanied by erosion and edema, demonstrating a chronic pattern of improvement and recurrence for more than six years. The patient had no relevant treatment history, and Helicobacter pylori infection was ruled out. Other potential etiologies contributing to gastric ulcers were eliminated on the basis of endoscopic biopsy and blood laboratory findings. Consequently, the patient was diagnosed with idiopathic gastric antral ulcer. This disease is often overlooked, and the chronological endoscopic images provided in this report can be used as a reference.

DOI： 10.2169/internalmedicine.2554-23

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Endoscopic Manifestations and Clinical Characteristics of Localized Gastric Light-Chain Amyloidosis. 査読

Masaya Iwamuro, Shouichi Tanaka, Tatsuya Toyokawa, Mamoru Nishimura, Takao Tsuzuki, Koji Miyahara, Shin Negishi, Shogen Ohya, Takehiro Tanaka, Motoyuki Otsuka

Acta medica Okayama 77 ( 5 ) 545 - 552 2023年10月

担当区分：筆頭著者,　責任著者記述言語：英語掲載種別：研究論文（学術雑誌）

To determine the endoscopic and clinical features of localized gastric amyloid light-chain (AL) amyloidosis, we retrospectively examined the characteristics of nine patients (eight men and one woman) encountered by the hospitals in our network. Lesions were predominantly flat and depressed with surface vascular dilatation (n=5); others were characterized by subepithelial lesions (n=2), mucosal color change (n=1), and a mass-like morphology with swollen mucosal folds (n=1). Colonoscopy (n=7), video capsule enteroscopy (n=2), serum (n=5) and urine immunoelectrophoresis (n=4), and bone marrow examination (n=3) were performed to exclude involvement of organs other than the stomach. As treatment for gastric lesions of AL amyloidosis, one patient each underwent endoscopic submucosal dissection (n=1) and argon plasma coagulation (n=1), while the remaining seven patients underwent no specific treatment. During a mean follow-up of 4.2 years, one patient died 3.2 years after diagnosis, but the cause of death, which occurred in another hospital, was unknown. The remaining eight patients were alive at the last visit. In conclusion, although localized gastric AL amyloidosis can show various macroscopic features on esophagogastroduodenoscopy, flat, depressed lesions with vascular dilatation on the surface are predominant.

DOI： 10.18926/AMO/65978

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Feasibility of Flow Cytometry Analysis of Gastrointestinal Tract-Residing Lymphocytes in Hematopoietic Stem Cell Transplant Recipients. 査読

Masaya Iwamuro, Takumi Kondo, Daisuke Ennishi, Nobuharu Fujii, Ken-Ichi Matsuoka, Takahide Takahashi, Araki Hirabata, Takehiro Tanaka, Fumio Otsuka, Yoshinobu Maeda, Hiroyuki Okada

Acta medica Okayama 77 ( 4 ) 347 - 357 2023年8月

担当区分：筆頭著者,　責任著者記述言語：英語掲載種別：研究論文（学術雑誌）

The feasibility of lymphocyte isolation and flow cytometry using a single endoscopic biopsy specimen from the gastrointestinal tract of patients who have undergone hematopoietic stem cell transplantation has not been investigated. We acquired 51 endoscopic biopsy specimens from the gastrointestinal tract of 35 patients. We divided the flow cytometry samples into two groups: group A, successful lymphocyte isolation (n=24), and group B, incomplete isolation (n=27). We compared the backgrounds of the samples between the groups to reveal crucial elements in the successful isolation of lymphocytes residing in the gastrointestinal tract. Comparison between the groups revealed lymphocyte isolation success rates differed between biopsy sites. Isolation was most successful in samples from the duodenum (8/9, 88.9%), followed by the ileum (4/8, 50.0%), large intestine (4/11, 36.4%), and stomach (8/23, 34.8%). Tacrolimus was used more frequently in group B (92.6%) than in group A (62.5%) (p=0.015). Logistic regression analysis revealed that isolation from the duodenum or ileum was a significant factor for successful isolation, while tacrolimus use was not statistically significant. In conclusion, the duodenum and ileum are more suitable sites than the stomach and colorectum for acquiring samples for flow cytometry.

DOI： 10.18926/AMO/65740

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岩室雅也, 田中健大, 大塚基之

消化器内視鏡 35 ( 8 ) 1072 - 1074 2023年8月

An Unusual Presentation of Chest Pain and Laryngeal Discomfort in a Pregnant Woman: A Case Report and Literature Review.

Misa Sasanami, Atsuyoshi Iida, Masaya Iwamuro, Ryousuke Hirai, Takashi Obara, Kohei Tsukahara, Tetsuya Yumoto, Hiromichi Naito, Atsunori Nakao

Acta medica Okayama 77 ( 4 ) 429 - 431 2023年8月

記述言語：英語

Intramural esophageal dissection (IED), characterized by bleeding into the submucosal space, leads to mucosal separation and dissection. The most prevalent symptoms are sudden chest or retrosternal pain, hematemesis, and dysphagia. Therefore, acute coronary syndrome and aortic dissection are among its most notable differential diagnoses. A 31-year-old pregnant woman presented with acute chest pain, laryngeal discomfort, and hematemesis. Emergency esophagogastroscopy revealed longitudinal mucosal dissection (upper esophagus to esophagogastric junction). The patient was successfully treated by avoiding the ingestion of solid foods. Clinicians should consider a diagnosis of IED for pregnant patients with acute chest pain, especially if hematemesis is present.

DOI： 10.18926/AMO/65755

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Review of oral and pharyngolaryngeal benign lesions detected during esophagogastroduodenoscopy. 招待査読国際誌

Masaya Iwamuro, Kenta Hamada, Seiji Kawano, Yoshiro Kawahara, Motoyuki Otsuka

World journal of gastrointestinal endoscopy 15 ( 7 ) 496 - 509 2023年7月

担当区分：筆頭著者,　責任著者記述言語：英語掲載種別：研究論文（学術雑誌）

Recent advancements in endoscopy equipment have facilitated endoscopists' detection of neoplasms in the oral cavity and pharyngolaryngeal regions. In particular, image-enhanced endoscopy using narrow band imaging or blue laser imaging play an integral role in the endoscopic diagnosis of oral and pharyngolaryngeal cancers. Despite these advancements, limited studies have focused on benign lesions that can be observed during esophagogastroduodenoscopy in the oral and pharyngolaryngeal regions. Therefore, this mini-review aimed to provide essential information on such benign lesions, along with representative endoscopic images of dental caries, cleft palate, palatal torus, bifid uvula, compression by cervical osteophytes, tonsil hyperplasia, black hairy tongue, oral candidiasis, oral and pharyngolaryngeal ulcers, pharyngeal melanosis, oral tattoos associated with dental alloys, retention cysts, papilloma, radiation-induced changes, skin flaps, vocal cord paresis, and vocal fold leukoplakia. Whilst it is imperative to seek consultation from otolaryngologists or dentists in instances where the diagnosis cannot be definitively ascertained by endoscopists, the merits of attaining foundational expertise pertaining to oral and pharyngolaryngeal lesions are unequivocal. This article will be a valuable resource for endoscopists seeking to enhance their understanding of oral and pharyngolaryngeal lesions.

DOI： 10.4253/wjge.v15.i7.496

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【消化管リンパ増殖性疾患の診断アプローチの基本】消化管B細胞リンパ腫の内視鏡所見の特徴

岡田裕之, 田中健大, 岩室雅也

胃と腸 58 ( 7 ) 863 - 870 2023年7月

記述言語：日本語出版者・発行元：(株)医学書院

＜文献概要＞消化管リンパ腫で頻度の高いMALTリンパ腫,濾胞性リンパ腫(FL),びまん性大細胞型B細胞リンパ腫(DLBCL),そしてマントル細胞リンパ腫(MCL)の内視鏡像について概説する.MALTリンパ腫の胃病変は表層型が多く,腸管病変は粘膜下腫瘍様隆起所見が多い.FLは十二指腸下行部のびまん性白色顆粒状隆起が特徴的である.腸管病変はリンパ濾胞増生様所見がみられ,時にMLP(multiple lymphomatous polyposis)も認められる.DLBCLは耳介様周堤を有する決潰型が特徴的である.MCLの胃病変は多彩で表層型,皺襞腫大型,隆起型,潰瘍型を呈する.腸管病変では多くがMLP所見を呈する.

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水浸下生検後の気泡流出により診断した腸管嚢胞様気腫症の1例査読

岩室雅也, 三宅望, 平岡佐規子

Gastroenterological Endoscopy 65 ( 7 ) 1245 - 1245 2023年7月

Update in Molecular Aspects and Diagnosis of Autoimmune Gastritis. 招待査読国際誌

Masaya Iwamuro, Takehiro Tanaka, Motoyuki Otsuka

Current issues in molecular biology 45 ( 7 ) 5263 - 5275 2023年6月

担当区分：筆頭著者,　責任著者記述言語：英語掲載種別：研究論文（学術雑誌）

Recent studies have advanced our understanding of the pathophysiology of autoimmune gastritis, particularly its molecular aspects. The most noteworthy recent advancement lies in the identification of several candidate genes implicated in the pathogenesis of pernicious anemia through genome-wide association studies. These genes include PTPN22, PNPT1, HLA-DQB1, and IL2RA. Recent studies have also directed attention towards other genes such as ATP4A, ATP4B, AIRE, SLC26A7, SLC26A9, and BACH2 polymorphism. In-depth investigations have been conducted on lymphocytes and cytokines, including T helper 17 cells, interleukin (IL)-17A, IL-17E, IL-17F, IL-21, IL-19, tumor necrosis factor-α, IL-15, transforming growth factor-β1, IL-13, and diminished levels of IL-27. Animal studies have explored the involvement of roseolovirus and H. pylori in relation to the onset of the disease and the process of carcinogenesis, respectively. Recent studies have comprehensively examined the involvement of autoantibodies, serum pepsinogen, and esophagogastroduodenoscopy in the diagnosis of autoimmune gastritis. The current focus lies on individuals demonstrating atypical presentations of the disease, including those diagnosed in childhood, those yielding negative results for autoantibodies, and those lacking the typical endoscopic characteristics of mucosal atrophy. Here, we discuss the recent developments in this field, focusing on genetic predisposition, epigenetic modifications, lymphocytes, cytokines, oxidative stress, infectious agents, proteins, microRNAs, autoantibodies, serum pepsinogen, gastrin, esophagogastroduodenoscopy and microscopic findings, and the risk of gastric neoplasm.

DOI： 10.3390/cimb45070334

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免疫関連有害事象(irAE:immune-related adverse events)による胃炎の5例

岩室雅也, 田中健大, 平田翔一郎, 河野吉泰, 川野誠司, 河原祥朗, 大塚基之

日本消化器病学会中国支部例会プログラム・抄録集 119回 70 - 70 2023年6月

内反性増殖を示した十二指腸腺癌に対してUnderwater EMRにて切除し得た1例

松枝克典, 川野誠司, 平田翔一郎, 岡上昇太郎, 里見拓也, 稲生祥子, 濱田健太, 河野吉泰, 岩室雅也, 河原祥朗, 田中健大, 大塚基之

日本消化器内視鏡学会中国支部例会 130回 76 - 76 2023年6月

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