| JaLCDOI | 10.18926/AMO/53676 |
|---|---|
| フルテキストURL | 69_5_301.pdf |
| 著者 | Seki, Anna| Iwamuro, Masaya| Yoshioka, Masao| Fujii, Nobuharu| Okada, Hiroyuki| Nose, Soichiro| Takata, Katsuyoshi| Yoshino, Tadashi| Yamamoto, Kazuhide| |
| 抄録 | A 41-year-old woman was diagnosed with duodenal follicular lymphoma. She had no other lesions and was assigned to a "watch and wait" policy. Swelling of the inguinal lymph nodes appeared 45 months later, and rituximab monotherapy resulted in complete remission. However, follicular lymphoma recurred in the stomach, rectum and mesenteric and external iliac lymph nodes 81 months after the therapy. The patient received rituximab monotherapy again and has remained in complete remission in the fifteenth year after the initial diagnosis. This case suggests the usefulness of rituximab monotherapy in the long-term management of intestinal follicular lymphoma. |
| キーワード | follicular lymphoma duodenum rituximab |
| Amo Type | Case Report |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2015-10 |
| 巻 | 69巻 |
| 号 | 5号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 301 |
| 終了ページ | 306 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2015 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 26490027 |
| Web of Science KeyUT | 000365519600006 |
| JaLCDOI | 10.18926/AMO/53679 |
|---|---|
| フルテキストURL | 69_5_319.pdf |
| 著者 | Hagiya, Hideharu| Iwamuro, Masaya| Tanaka, Takehiro| Hanayama, Yoshihisa| Otsuka, Fumio| |
| 抄録 | A 60-year-old woman with rheumatoid arthritis treated with methotrexate for a decade complained of slight epigastric discomfort. A positive cytomegalovirus (CMV) antigenemia test indicated the probability of CMV-related gastrointestinal infection, for which esophagogastroduodenoscopy was performed. Endoscopic findings showed a non-specific duodenal mucosal lesion;however, pathological investigation revealed evidence of CMV duodenitis. There is scarce information on the clinical and pathological features of CMV-related duodenitis, likely due to its low prevalence. CMV infection in the upper gastrointestinal tract should be considered as a differential diagnosis in high-risk individuals, particularly those with symptoms relating to the digestive system. Biopsy examinations are preferable for the definitive diagnosis of CMV gastrointestinal infection, even without specific endoscopic features. |
| キーワード | antigenemia cytomegalovirus (CMV) gastrointestinal infection methotrexate opportunistic infection |
| Amo Type | Case Report |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2015-10 |
| 巻 | 69巻 |
| 号 | 5号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 319 |
| 終了ページ | 323 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2015 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 26490030 |
| Web of Science KeyUT | 000365519600009 |
| JaLCDOI | 10.18926/AMO/53912 |
|---|---|
| フルテキストURL | 69_6_365.pdf |
| 著者 | Kawano, Seiji| Hiraoka, Sakiko| Okada, Hiroyuki| Akita, Mitsuhiro| Iwamuro, Masaya| Yamamoto, Kazuhide| |
| 抄録 | Several studies have identified a relationship between myelodysplastic syndrome and Behçetʼs disease (BD), especially intestinal BD, and trisomy 8 appears to play an important role in these disorders. Despite this, only few case reports or series have been reported in gastroenterology, meaning that endoscopic findings and characteristics of intestinal BD have not been clarified yet. In this report, we describe three cases of intestinal BD associated with myelodysplastic syndrome and trisomy 8, and discuss the clinical features and problems of these disorders from a gastroenterology perspective. |
| キーワード | Behçetʼs disease trisomy 8 myelodysplastic syndrome |
| Amo Type | Case Reports |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2015-12 |
| 巻 | 69巻 |
| 号 | 6号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 365 |
| 終了ページ | 369 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2015 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 26690248 |
| Web of Science KeyUT | 000368434500007 |
| JaLCDOI | 10.18926/AMO/54422 |
|---|---|
| フルテキストURL | 70_3_217.pdf |
| 著者 | Waseda, Koichi| Ocho, Kazuki| Hasegawa, Kou| Kimura, Kosuke| Iwamuro, Masaya| Hanayama, Yoshihisa| Kondo, Eisei| Miyahara, Nobuaki| Otsuka, Fumio| |
| 抄録 | KL-6 is a glycoprotein found predominantly on type II pneumocytes and alveolar macrophages, and often shows increased serum levels in patients with interstitial pneumonia. We report a case of mycobacterium avium complex (MAC) infection whose disease activity was correlated with KL-6 levels in serum. During treatment of rheumatoid arthritis (RA)-associated interstitial lung disease (ILD) with prednisolone, chest image findings improved in association with decreased KL-6 levels. Following tapering of prednisolone, chest image findings deteriorated again as levels of KL-6 increased, suggesting recurrence of RA-ILD. Bronchoscopic examination revealed active MAC infection. Treatment of MAC infection not only improved chest image findings but also decreased KL-6 levels in serum, suggesting that KL-6 was increased by active MAC infection by itself, not by recurrence of RA-ILD. To the best of our knowledge, this is the first documentation of KL-6 elevation in serum in association with active MAC infection. |
| キーワード | KL-6 mycobacterium avium complex pulmonary nontuberculous mycobacterium infection rheumatoid arthritis-associated interstitial lung disease bronchial alveolar lavage |
| Amo Type | Case Report |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2016-06 |
| 巻 | 70巻 |
| 号 | 3号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 217 |
| 終了ページ | 221 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2016 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 27339212 |
| Web of Science KeyUT | 000379406100010 |
| JaLCDOI | 10.18926/AMO/54504 |
|---|---|
| フルテキストURL | 70_4_279.pdf |
| 著者 | Nishimura, Yoshito| Iwamuro, Masaya| Ocho, Kazuki| Hasegawa, Kou| Kimura, Kosuke| Hanayama, Yoshihisa| Kondo, Eisei| Tanaka, Takehiro| Otsuka, Fumio| |
| 抄録 | A 61-year-old Japanese man with IgG4-related autoimmune pancreatitis was referred to our hospital because of perspiration during food intake. Abdominal computed tomography (CT) with contrast media revealed multiple mesenteric lymphadenopathies. An open surgical abdominal biopsy and subsequent histopathological analysis revealed abnormally large lymphoid cells that were negative for CD3, CD5, and c-myc and positive for CD20 and bcl-2, leading to a diagnosis of diffuse large B-cell lymphoma. Here, we discuss the risk of malignancies, particularly malignant lymphoma in patients with IgG4-related disease. The importance of pathological analysis to reach the appropriate diagnosis in such cases should be emphasized. |
| キーワード | IgG4-related disease autoimmune pancreatitis immunophenotyping diffuse large B-cell lymphoma |
| Amo Type | Case Report |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2016-08 |
| 巻 | 70巻 |
| 号 | 4号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 279 |
| 終了ページ | 283 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2016 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 27549673 |
| Web of Science KeyUT | 000384748600008 |
| JaLCDOI | 10.18926/AMO/54977 |
|---|---|
| フルテキストURL | 71_2_97.pdf |
| 著者 | Iwamuro, Masaya| Kondo, Eisei| Tanaka, Takehiro| Hagiya, Hideharu| Kawano, Seiji| Kawahara, Yoshiro| Otsuka, Fumio| Okada, Hiroyuki| |
| 抄録 | We retrospectively analyzed the cases of 14 patients (9 women, 5 men, mean age: 51.6 years) with cytomegalovirus (CMV) involvement in the esophagus, stomach, and/or duodenum diagnosed at a single center, to determine their endoscopic features and clinical backgrounds. Thirteen patients (92.9%) had hematologic disease; the other had rheumatoid arthritis. Of the former, 12 patients underwent allogeneic hematopoietic stem cell transplantation, and 9 of these patients had graft-versus-host disease (GVHD) before undergoing esophagogastroduodenoscopy (EGD). All 14 patients had been taking one or more immunosuppressive agents including cyclosporine (n=10), corticosteroids (n=9), mycophenolic acid (n=6), tacrolimus (n=3), and methotrexate (n=1). Tests for CMV antigenemia were positive in 11 patients (78.6%). EGD examinations revealed esophageal (n=3), gastric (n=9), and duodenal involvement (n=6). Macroscopically, esophageal lesions by CMV infection presented as redness (n=1), erosions (n=1), and ulcers (n=1). Gastric lesions manifested as redness (n=7), erosions (n=3), exfoliated mucosa (n=2), and verrucous erosions (n=1). Mucosal appearances in the duodenum varied: redness (n=2), ulcers (n=2), multiple erosions (n=2), single erosion (n=1), edema (n=1). CMV was detected even in the intact duodenal mucosa (n=1). In conclusion, physicians must recall the relevance of CMV infection when any mucosal alterations exist in the upper gastrointestinal tract of immunosuppressed patients. |
| キーワード | cytomegalovirus duodenum esophagogastroduodenoscopy esophagus stomach |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2017-04 |
| 巻 | 71巻 |
| 号 | 2号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 97 |
| 終了ページ | 104 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2017 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 28420890 |
| 著者 | 岩室 雅也| 岡田 裕之| 原田 馨太| 神崎 洋光| 堀 圭介| 喜多 雅英| 川野 誠司| 河原 祥朗| 田中 健大| 山本 和秀| |
|---|---|
| 発行日 | 2016-12-01 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 128巻 |
| 号 | 3号 |
| 資料タイプ | 学術雑誌論文 |
| 著者 | 後藤田 達洋| 川野 誠司| 河野 吉泰| 三浦 公| 神崎 洋光| 岩室 雅也| 河原 祥朗| 田中 健大| 吉野 正| 白川 靖博| 田端 雅弘| 谷本 光音| 岡田 裕之| |
|---|---|
| 発行日 | 2016-12-01 |
| 出版物タイトル | 岡山医学会雑誌 |
| 巻 | 128巻 |
| 号 | 3号 |
| 資料タイプ | 学術雑誌論文 |
| JaLCDOI | 10.18926/AMO/55207 |
|---|---|
| フルテキストURL | 71_3_241.pdf |
| 著者 | Iwamuro, Masaya| Tanaka, Shouichi| Moritou, Yuki| Inaba, Tomoki| Higashi, Reiji| Kusumoto, Chiaki| Yunoki, Naoko| Ishikawa, Shin| Okamoto, Yuko| Kawai, Yoshinari| Kitada, Ken-ichi| Takenaka, Ryuta| Toyokawa, Tatsuya| Okada, Hiroyuki| |
| 抄録 | Most gastric bezoars can be treated with endoscopic fragmentation combined with or without cola dissolution, whereas laparotomy or laparoscopic surgery is generally inevitable for small intestinal bezoars because they cause small bowel obstruction. Therefore, early diagnosis and management of gastric bezoars are necessary to prevent bezoar-induced ileus. To investigate the incidence of overlooked gastric bezoars during the initial esophagogastroduodenoscopy, we retrospectively reviewed the cases of 27 patients diagnosed with gastrointestinal bezoars. The bezoars were diagnosed using esophagogastroduodenoscopy (n=25), abdominal ultrasonography (n=1), and barium follow-through examination (n=1). Bezoars were overlooked in 9/25 patients (36.0%) during the initial endoscopy examination because the bezoars were covered with debris in the stomach. Of the 9 patients, 8 had concomitant gastric ulcers, and the other patient had gastric lymphoma. Although a computed tomography (CT) scan was performed before the second-look endoscopy in 8 of the 9 patients, the bezoars were mistaken as food debris on CT findings and were overlooked in these patients. In conclusion, gastric bezoars may not be discovered during the initial esophagogastroduodenoscopy and CT scan. In cases with debris in the stomach, second-look endoscopy is essential to detect bezoars. |
| キーワード | bezoar gastric ulcer foreign bodies phytobezoar |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2017-06 |
| 巻 | 71巻 |
| 号 | 3号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 241 |
| 終了ページ | 247 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2017 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 28655944 |
| JaLCDOI | 10.18926/AMO/55436 |
|---|---|
| フルテキストURL | 71_5_391.pdf |
| 著者 | Iwamuro, Masaya| Takata, Katsuyoshi| Hayashi, Eiko| Kawano, Seiji| Hiraoka, Sakiko| Kawahara, Yoshiro| Yoshino, Tadashi| Okada, Hiroyuki| |
| 抄録 | To evaluate the usefulness of colonoscopy for the detection of ileal involvement in patients with intestinal follicular lymphoma, seventeen patients with intestinal follicular lymphoma who underwent colonoscopy and biopsy sampling from the terminal ileum were enrolled. The patients were divided into 2 groups: cases with ileal involvement (n=6) and cases without ileal involvement (n=11). Patients’ clinical backgrounds were compared between the two groups. Subsequently, 10 board-certified endoscopists independently evaluated the endoscopic pictures and determined whether the ileum was involved with follicular lymphoma. Infiltration of follicular lymphoma cells were identified in 6 patients (35.3%). Cases with positive ileal involvement were diagnosed with follicular lymphoma at a younger age than were cases without ileal involvement (55.4±7.4 vs. 68.1±10.3 years, p=0.011). Macroscopically, in patients with ileal involvement, there were multiple polypoid elevations smaller than 5 mm in 4 cases, single polypoid elevation smaller than 5 mm in 1 case, and single polypoid elevation larger than 5 mm in 1 case. In patients without ileal involvement, there were no lesions in the terminal ileum in 7 cases, and multiple polypoid elevations smaller than 5 mm were seen in 4 cases. The accuracy of the macroscopic evaluation by 10 board-certified endoscopists was 68.8%. Colonoscopy is particularly recommended during the initial workup of patients with follicular lymphoma diagnosed at age ≤ 60 years. The diagnosis of ileal involvement based on morphology alone is difficult; thus, biopsy and pathologic diagnosis are required for accurate diagnosis. |
| キーワード | follicular lymphoma colonoscopy ileal neoplasms terminal ileum small intestine |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2017-10 |
| 巻 | 71巻 |
| 号 | 5号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 391 |
| 終了ページ | 398 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2017 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 29042696 |
| JaLCDOI | 10.18926/AMO/57377 |
|---|---|
| フルテキストURL | 73_5_457.pdf |
| 著者 | Iwamuro, Masaya| Takahara, Masahiro| Yamazaki, Tatsuhiro| Tanaka, Takehiro| Kondo, Yoshitaka| Hiraoka, Sakiko| Okada, Hiroyuki| |
| 抄録 | A 60-year-old Caucasian male was diagnosed with lung adenocarcinoma and multiple metastases to the bone, spleen, and brain. He underwent radiotherapy for the brain and lumbar spine metastases, plus chemotherapy (cisplatin and pemetrexed). The chemotherapy was discontinued due to vomiting and hyponatremia, and nivolumab was then administered. Eight months later, 18F-fluorodeoxyglucose positron emission tomography showed tracer uptake in the colon. Colonoscopy revealed a reddish multinodular polyp in the sigmoid colon. The polyp showed irregular microvessels. No colonic mucosal surface structures were observed. Colonic metastasis of the lung carcinoma was highly suspected; the polyp was therefore surgically removed. The histological analysis revealed granulation tissue and suppurative inflammation without neoplastic changes. We diagnosed the lesion as a granulation polyp. Despite the difficulty in diagnosing these lesions due to their rarity and similarity to metastatic colon tumors, we suggest that recognizing the endoscopic features of the polyp surface may allow a preoperative diagnosis. |
| キーワード | colonoscopy colonic neoplasms granulation polyp |
| Amo Type | Case Report |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2019-10 |
| 巻 | 73巻 |
| 号 | 5号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 457 |
| 終了ページ | 461 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2019 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 31649373 |
| Web of Science KeyUT | 000491886600012 |
| JaLCDOI | 10.18926/AMO/59957 |
|---|---|
| フルテキストURL | 74_3_237.pdf |
| 著者 | Oyama, Atsushi| Uchida, Daisuke| Shiraha, Hidenori| Sawahara, Hiroaki| Kato, Ryo| Iwamuro, Masaya| Horiguchi, Shigeru| Okada, Hiroyuki| |
| 抄録 | The physiological role of the reduced expression of immortalized cells (REIC)/Dickkopf-3 (Dkk-3) protein in patients with hepatocellular carcinoma (HCC) remains unclear. In this study, we evaluated the effect of the REIC/Dkk-3 protein on HCC cell proliferation and assessed the relationship between the serum REIC/Dkk-3 protein level and the prognosis in patients with HCC. We evaluated the REIC/Dkk-3 protein-induced anticancer effects on Huh7 and Hep3B cells (HCC cell lines) in the presence of peripheral blood mononuclear cells (PBMCs), and found that combination treatment with REIC/Dkk-3 protein and PBMCs reduced the proliferation of HCC cells (Hep3B: 82.0%±16.3%; Huh7: 72.6%±9.1%). We also studied 194 HCC patients who underwent primary liver resection or primary radiofrequency ablation from 2008 to 2017. Serum REIC/Dkk-3 protein levels were measured by an enzyme-linked immunosorbent assay and compared to the prognostic data. The 3-year disease-free survival of the REIC/Dkk-3 high group was significantly higher than that in the REIC/Dkk-3 low group. In conclusion, this is the first study investigating the relationship between HCC patient survival and serum REIC/Dkk-3 protein levels in a large population. Based on the results, the serum REIC/Dkk-3 protein level should be considered a new prognostic marker for patients with HCC. |
| キーワード | enzyme-linked immunosorbent assay liver resection primary radiofrequency ablation Huh7 Hep3B |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2020-06 |
| 巻 | 74巻 |
| 号 | 3号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 237 |
| 終了ページ | 243 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2020 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 32577022 |
| Web of Science KeyUT | 000543363400007 |
| NAID | 120006862798 |
| 著者 | Iwamuro, Masaya| Urata, Haruo| Tanaka, Takehiro| Ando, Akemi| Nada, Takahiro| Kimura, Kosuke| Yamauchi, Kenji| Kusumoto, Chiaki| Otsuka, Fumio| Okada, Hiroyuki| |
|---|---|
| 発行日 | 2017-02 |
| 出版物タイトル | Acta Medica Okayama |
| 巻 | 71巻 |
| 号 | 1号 |
| 資料タイプ | 学術雑誌論文 |
| JaLCDOI | 10.18926/AMO/54828 |
| JaLCDOI | 10.18926/AMO/61204 |
|---|---|
| フルテキストURL | 74_6_461.pdf |
| 著者 | Kono, Yoshiyasu| Kanzaki, Hiromitsu| Iwamuro, Masaya| Kawano, Seiji| Kawahara, Yoshiro| Okada, Hiroyuki| |
| 抄録 | Gastric cancer usually arises in middle-aged to older patients, and is rarely found in younger patients. The clin-ical characteristics, etiology, prognosis, preventive methods and treatment of gastric cancer in young patients have not been fully investigated because of its low prevalence. In this review, we discuss the current under-standing and clinical problems associated with gastric cancer in young patients. Helicobacter pylori (H. pylori), which is a major cause of gastric cancer, especially in older populations, is closely associated with gastric cancer in young patients as well as in older patients. Gastric cancer in young patients tends to be diagnosed at an advanced stage with alarm symptoms. However, young patients with advanced gastric cancer tend to have a favorable general condition and organ function, so they can tolerate intensive systematic chemotherapy. Unfortunately, the prognosis of gastric cancer in young patients with an advanced stage is not favorable. We should not take this rare disease lightly, given its poor prognosis if patients are diagnosed at an unresectable stage. The evaluation of the H. pylori infection status and performance of H. pylori eradication therapy to prevent gastric cancer in young patients as well as the development of more intensive chemotherapy regimens for unre-sectable gastric cancer in young patients are warranted. |
| キーワード | gastric cancer young patients Helicobacter pylori |
| Amo Type | Review |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2020-12 |
| 巻 | 74巻 |
| 号 | 6号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 461 |
| 終了ページ | 466 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2020 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 33361865 |
| Web of Science KeyUT | 000601203600001 |
| NAID | 120006948954 |
| タイトル（別表記） | Changes of colonic mucosa caused by long-term use and discontinuation of anthraquinone |
|---|---|
| フルテキストURL | 129_23.pdf |
| 著者 | 岩野 英二| 岩室 雅也| 岡田 裕之| |
| 抄録 | Anthraquinone, an anthracene derivatives, is widely used as a purgative medicine. The long-term use of anthraquinone is known to cause melanosis coli and elevated lesions in the colon. However, the clinical course of patients who take anthraquinone over a long term and those who discontinue the drug has not been fully investigated. Here we investigated 22 patients who had colonic mucosal changes ( i.e., melanosis coli and elevated lesions) who had been taking anthraquinone for at least one year and discontinued it. We classified the elevated lesions into two subtypes:the small-lesion, which included multiple small nodules that were ＜ 2 mm in dia., and the large-lesion, which included a single or multiple nodules of ≥ 2-mm dia. We used colonoscopy to investigate the changes of colonic lesions between before and after the discontinuation of anthraquinone. The results indicated that the nodules of the small-lesion group were lymphoid follicle hyperplasia. In the large-lesion group, adenoma was most frequently observed ( n＝118) , followed by hyperplastic polyp ( n＝52) and inflammatory changes with edema ( n＝22) . Melanosis coli and elevated lesions were decreased or invisible after the discontinuation of anthraquinone. Our findings thus suggest that the long-term use of anthraquinone may cause some type of elevated lesions due to chronic inflammation. It is recommended that the use of anthraquinone be limited to a short term. |
| キーワード | アントラセン誘導体（anthracene derivatives) アントラキノン（anthraquinone） 大腸黒皮症（melanosis coli） 大腸メラノーシス（pseudomelanosis coli） リンパ濾胞過形成（lymphoid follicle hyperplasia） |
| 出版物タイトル | 岡山医学会雑誌 |
| 発行日 | 2017-04-03 |
| 巻 | 129巻 |
| 号 | 1号 |
| 開始ページ | 23 |
| 終了ページ | 30 |
| ISSN | 0030-1558 |
| 言語 | 日本語 |
| 著作権者 | Copyright (c) 2017 岡山医学会 |
| 論文のバージョン | publisher |
| DOI | 10.4044/joma.129.23 |
| NAID | 130005632078 |
| JaLCDOI | 10.18926/AMO/64365 |
|---|---|
| フルテキストURL | 77_1_75.pdf |
| 著者 | Iwamuro, Masaya| Tanaka, Takehiro| Hamada, Kenta| Kono, Yoshiyasu| Kanzaki, Hiromitsu| Kawano, Seiji| Kawahara, Yoshiro| Okada, Hiroyuki| |
| 抄録 | Herein, we report two patients with autoimmune gastritis who had undergone multiple esophagogastroduodenoscopy procedures for 17 and 9 years, respectively, before their diagnosis. Instead, they had been diagnosed with and treated for Helicobacter pylori-associated gastritis. The correct diagnosis was made when scatterings of tiny whitish protrusions in the gastric mucosa were detected on esophagogastroduodenoscopy. Our findings suggest that scattered tiny whitish bumps may be a clue to the diagnosis of autoimmune gastritis. |
| キーワード | autoimmune gastritis esophagogastroduodenoscopy scattered lesions small white protrusions mucosal lesions |
| Amo Type | Case Report |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2023-02 |
| 巻 | 77巻 |
| 号 | 1号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 75 |
| 終了ページ | 80 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | Copyright Ⓒ 2023 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 36849149 |
| Web of Science KeyUT | 000952973200001 |
| フルテキストURL | DLD51_1_168.pdf |
|---|---|
| 著者 | Iwamuro, Masaya| Urata, Haruo| Tanaka, Takehiro| Okada, Hiroyuki| |
| 発行日 | 2019-01-31 |
| 出版物タイトル | Digestive and Liver Disease |
| 巻 | 51巻 |
| 号 | 1号 |
| 出版者 | Elsevier |
| 開始ページ | 168 |
| ISSN | 15908658 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| OAI-PMH Set | 岡山大学 |
| 著作権者 | © 2018 Editrice Gastroenterologica Italiana S.r.l. Published by Elsevier Ltd. All rights reserved. |
| 論文のバージョン | author |
| PubMed ID | 30145054 |
| DOI | 10.1016/j.dld.2018.07.031 |
| Web of Science KeyUT | 000454119300026 |
| 関連URL | isVersionOf https://doi.org/10.1016/j.dld.2018.07.031 |
| フルテキストURL | GRP_8159072.pdf |
|---|---|
| 著者 | Iwamuro, Masaya| Aoyama, Yuki| Suzuki, Seiyuu| Kobayashi, Sayo| Toyokawa, Tatsuya| Moritou, Yuki| Hori, Shinichiro| Matsueda, Kazuhiro| Yoshioka, Masao| Tanaka, Takehiro| Okada, Hiroyuki| |
| 発行日 | 2019-09-08 |
| 出版物タイトル | Gastroenterology Research and Practice |
| 出版者 | Hindawi |
| 開始ページ | 8159072 |
| ISSN | 1687-6121 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| OAI-PMH Set | 岡山大学 |
| 著作権者 | Copyright © 2019 Masaya Iwamuro et al. |
| 論文のバージョン | publisher |
| PubMed ID | 31582972 |
| DOI | 10.1155/2019/8159072 |
| Web of Science KeyUT | 000487588000001 |
| 関連URL | isVersionOf https://doi.org/10.1016/bs.aiip.2019.01.001 |
| フルテキストURL | CRGM_2019_5742672.pdf |
|---|---|
| 著者 | Iwamuro, Masaya| Urata, Haruo| Hirata, Shoichiro| Ueki, Toru| Hanabata, Tetsuro| Takeda, Sho| Teraoka, Akira| Okada, Hiroyuki| |
| 発行日 | 2019-05-23 |
| 出版物タイトル | Case Reports in Gastrointestinal Medicine |
| 出版者 | HINDAWI |
| 開始ページ | 5742672 |
| ISSN | 20906528 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| OAI-PMH Set | 岡山大学 |
| 著作権者 | Copyright © 2019 Masaya Iwamuro et al. |
| 論文のバージョン | publisher |
| PubMed ID | 31240139 |
| DOI | 10.1155/2019/5742672 |
| Web of Science KeyUT | 000470161500001 |
| 関連URL | isVersionOf https://doi.org/10.1155/2019/5742672 |
| JaLCDOI | 10.18926/AMO/53120 |
|---|---|
| フルテキストURL | 69_1_37.pdf |
| 著者 | Iwamuro, Masaya| Okada, Hiroyuki| Takata, Katsuyoshi| Kawai, Yoshinari| Kawano, Seiji| Nasu, Junichiro| Kawahara, Yoshiro| Tanaka, Takehiro| Yoshino, Tadashi| Yamamoto, Kazuhide| |
| 抄録 | The sensitivity and specificity of magnified endoscopic features for differentiating follicular lymphoma from other diseases with duodenal whitish lesions have never been investigated. Here we compared the magnified endoscopic features of duodenal follicular lymphoma with those of other whitish lesions. We retrospectively reviewed the cases of patients with follicular lymphoma (n＝9), lymphangiectasia (n＝7), adenoma (n＝10), duodenitis (n＝4), erosion (n＝1), lymphangioma (n＝1), and hyperplastic polyp (n＝1). The magnified features of the nine follicular lymphomas included enlarged villi (n＝8), dilated microvessels (n＝5), and opaque white spots of various sizes (n＝9). The lymphangiectasias showed enlarged villi, dilated microvessels, and white spots, but the sizes of the white spots were relatively homogeneous and their margin was clear. Observation of the adenoma and duodenitis revealed only whitish villi. Although the lymphangioma was indistinguishable from the follicular lymphomas by magnified features, it was easily diagnosed based on the macroscopic morphology. In conclusion, magnified endoscopic features, in combination with macroscopic features, are useful for differentiating follicular lymphomas from other duodenal diseases presenting whitish lesions. |
| キーワード | duodenal neoplasm follicular lymphoma gastrointestinal lymphoma magnifying endoscopy |
| Amo Type | Original Article |
| 出版物タイトル | Acta Medica Okayama |
| 発行日 | 2015-02 |
| 巻 | 69巻 |
| 号 | 1号 |
| 出版者 | Okayama University Medical School |
| 開始ページ | 37 |
| 終了ページ | 44 |
| ISSN | 0386-300X |
| NCID | AA00508441 |
| 資料タイプ | 学術雑誌論文 |
| 言語 | 英語 |
| 著作権者 | CopyrightⒸ 2015 by Okayama University Medical School |
| 論文のバージョン | publisher |
| 査読 | 有り |
| PubMed ID | 25703169 |
| Web of Science KeyUT | 000349740300004 |