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Magnifying endoscopy

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https://www.readbyqxmd.com/read/28731617/in-vivo-diagnosis-of-early-stage-gastric-cancer-found-after-helicobacter-pylori-eradication-using-probe-based-confocal-laser-endomicroscopy
#1
Noriyuki Horiguchi, Tomomitsu Tahara, T Hyuga Yamada, Dai Yoshida, Masaaki Okubo, Mitsuo Nagasaka, Yoshihito Nakagawa, Tomoyuki Shibata, Tetsuya Tsukamoto, Makoto Kuroda, Naoki Ohmiya
BACKGROUND AND AIM: Early-stage gastric cancer (EGC) found after Helicobacter pylori (Hp) eradication often displays non-tumorous regenerative epithelium and/or maturated tumorous epithelium overlying the cancerous tissue, which may confuse endoscopic and histologic diagnosis. Probe-based confocal laser endomicroscopy (pCLE) enables in vivo real-time optical biopsy. We compared the diagnostic yields for these EGC cases using conventional white light endoscopy (WL), magnifying endoscopy with narrow-band imaging (ME-NBI), pCLE, and endoscopic biopsy; we also compared the accuracy of the horizontal extent diagnosis between ME-NBI and pCLE...
July 21, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28720472/mantle-cell-lymphoma-involving-the-esophagus-evaluated-by-magnifying-endoscopy-with-narrow-band-imaging
#2
Haruka Toyonaga, Masashi Fukushima, Tetsuro Inokuma, Yukihiro Imai
No abstract text is available yet for this article.
July 15, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28706424/new-magnifying-endoscopic-classification-for-superficial-esophageal-squamous-cell-carcinoma
#3
Su Jin Kim, Gwang Ha Kim, Moon Won Lee, Hye Kyung Jeon, Dong Hoon Baek, Bong Eun Lee, Geun Am Song
AIM: To assess the accuracy of a new magnifying endoscopy (ME) classification for predicting depth of invasion of superficial esophageal squamous cell carcinoma (SESCC). METHODS: This study included a total of 70 lesions in 69 patients with SESCC who underwent ME with narrow-band imaging (ME-NBI) before resection from August 2010 to July 2016. Accuracy of ME-NBI for predicting depth of invasion of SESCC was analyzed by using a new ME classification proposed by the Japan Esophageal Society (JES), and interobserver agreement was assessed...
June 28, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28702753/magnifying-nbi-patterns-of-gastric-mucosa-after-helicobacter-pylori-eradication-and-its-potential-link-to-the-gastric-cancer-risk
#4
Tomomitsu Tahara, Sayumi Tahara, Tetsuya Tuskamoto, Noriyuki Horiguchi, Dai Yoshida, Tomohiko Kawamura, Masaaki Okubo, Mitsuo Nagasaka, Yoshihito Nakagawa, Makoto Urano, Makoto Kuroda, Tomoyuki Shibata, Naoki Ohmiya
BACKGROUND: Gastric cancer develops after successful H. pylori eradication in patients with severe atrophic gastritis. We classified atrophic and non-atrophic mucosa of gastric body using magnifying NBI endoscopy in patients after successful H. pylori eradication. MATERIALS AND METHODS: One hundred and twenty-five patients after successful H. pylori eradication (median period after eradication: 36 months) were enrolled. Magnifying NBI patterns in the uninvolved gastric body were divided into the following: restored-small, round pits, accompanied with honeycomb-like subepithelial capillary networks; atrophic-well-demarcated oval or tubulovillous pits with clearly visible coiled or wavy vessels...
July 12, 2017: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/28700034/application-of-endoscopy-to-treat-mandibular-keratocystic-odontogenic-tumors
#5
Z Gao, Q W Ni, W Gao, Y P Liu, Q Zhang
The aim of this study was to evaluate the feasibility of endoscopy to remove keratocystic odontogenic tumors (KCOTs) with virtual 3D mandibular images. Fifteen patients (mean age, 40.27±14.58 years) who underwent endoscopic mandibular KCOT enucleation between May 2009 and October 2009 were included. Virtual 3D mandibular reconstructions derived from computed tomography (CT) imaging were generated for all patients. Recurrence and pathological fracture were evaluated as the primary outcome variables at 1 and 12 months after operation...
July 10, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/28693176/flexible-magnifying-endoscopy-with-narrow-band-imaging-for-the-diagnosis-of-uterine-cervical-tumors-a-cooperative-study-among-gastrointestinal-endoscopists-and-gynecologists-to-explore-a-novel-microvascular-classification-system
#6
Noriko Nishiyama, Kenji Kanenishi, Hirohito Mori, Hideki Kobara, Shintaro Fujihara, Taiga Chiyo, Nobuya Kobayashi, Tae Matsunaga, Maki Ayaki, Tatsuo Yachida, Ayako Fujimori, Makoto Oryu, Chiaki Tenkumo, Megumi Ishibashi, Uiko Hanaoka, Toshiyuki Hata, Yumi Miyai, Kyuichi Kadota, Reiji Haba, Tsutomu Masaki
Narrow band imaging with magnifying endoscopy (NBI-ME), which is useful for the assessment of micro-vessels, has excellent diagnostic potential for early gastrointestinal epithelial neoplasia. Conventional diagnostic tools for uterine cervical epithelial tumors are still unsatisfactory. An accurate diagnostic tool for uterine cervical epithelial tumors is required to preserve the reproductive ability of young women with uterine cervical tumors. Flexible NBI-ME was performed in patients with cervical squamous cell lesions that required further examinations based on their Pap smear results (cytology ≥ low-grade squamous intraepithelial lesion) at Kagawa University Hospital between April 2014 and April 2015...
July 2017: Oncology Letters
https://www.readbyqxmd.com/read/28685858/diagnostic-performance-of-routine-esophagogastroduodenoscopy-using-magnifying-endoscope-with-narrow-band-imaging-for-gastric-cancer
#7
Shoichi Yoshimizu, Yorimasa Yamamoto, Yusuke Horiuchi, Masami Omae, Toshiyuki Yoshio, Akiyoshi Ishiyama, Toshiaki Hirasawa, Tomohiro Tsuchida, Junko Fujisaki
OBJECTIVES: In Japan, an increase in the number of routine esophagogastroduodenoscopy procedures is expected because several studies have reported that endoscopy screenings have reduced gastric cancer mortality. Magnifying narrow-band imaging has been reported to be effective for accurate diagnosis of gastric abnormalities such as cancers, adenomas, and intestinal metaplasia. However, the efficacy of this method in routine esophagogastroduodenoscopy has not been clarified. METHODS: We divided 3,763 patients into two groups...
July 7, 2017: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28652665/application-of-novel-magnified-single-balloon-enteroscopy-for-a-patient-with-cronkhite-canada-syndrome
#8
Masaki Murata, Shigeki Bamba, Kenichiro Takahashi, Hirotsugu Imaeda, Atsushi Nishida, Osamu Inatomi, Tomoyuki Tsujikawa, Ryoji Kushima, Mitsushige Sugimoto, Akira Andoh
We present a case of Cronkhite-Canada syndrome (CCS) in which the entire intestine was observed using a prototype of magnifying single-balloon enteroscope (SIF Y-0007, Olympus). CCS is a rare, non-familial gastrointestinal polyposis with ectodermal abnormalities. To our knowledge, this is the first report showing magnified intestinal lesions of CCS. A 73-year-old female visited our hospital with complaints of diarrhea and dysgeusia. The blood test showed mild anemia and hypoalbuminemia. The esophagogastroduodenoscopy and colonoscopy revealed diffuse and reddened sessile to semi-pedunculated polyps, resulting in the diagnosis of CCS...
June 14, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28639135/histological-verification-of-the-usefulness-of-magnifying-endoscopy-with-narrow-band-imaging-for-horizontal-margin-diagnosis-of-differentiated-type-early-gastric-cancers
#9
Makomo Makazu, Kingo Hirasawa, Chiko Sato, Ryosuke Ikeda, Takehide Fukuchi, Yasuaki Ishii, Ryosuke Kobayashi, Hiroaki Kaneko, Masataka Taguri, Yoko Tateishi, Yoshiaki Inayama, Shin Maeda
BACKGROUND: Although magnifying endoscopy with narrow-band imaging (ME-NBI) can help identify the horizontal margin (HM) of early gastric cancer (EGC), little is known about the factors that can clarify the HM by using ME-NBI. We aimed to characterize the pathological features of lesions in which the HM was identified using ME-NBI. METHODS: The HMs of 639 differentiated-type EGCs treated with endoscopic submucosal dissection or surgery were analyzed using conventional endoscopy and ME-NBI...
June 21, 2017: Gastric Cancer
https://www.readbyqxmd.com/read/28596787/clinical-usefulness-of-the-vs-classification-system-using-magnifying-endoscopy-with-blue-laser-imaging-for-early-gastric-cancer
#10
Yoshikazu Yoshifuku, Yoji Sanomura, Shiro Oka, Kazutaka Kuroki, Mio Kurihara, Takeshi Mizumoto, Yuji Urabe, Toru Hiyama, Shinji Tanaka, Kazuaki Chayama
BACKGROUND: Blue laser imaging (BLI) enables the acquisition of more information from tumors' surfaces compared with white light imaging. Few reports confirm the validity of magnifying endoscopy (ME) with BLI (ME-BLI) for early gastric cancer (EGC). We aimed to assess the detailed endoscopic findings from EGCs using ME-BLI. METHODS: We enrolled 386 consecutive patients with 417 EGCs that were diagnosed using ME-BLI and resected by endoscopic submucosal dissection...
2017: Gastroenterology Research and Practice
https://www.readbyqxmd.com/read/28596594/magnifying-narrow-band-imaging-of-gastric-mucosal-morphology-predicts-the-h-pylori-related-epigenetic-field-defect
#11
Tomomitsu Tahara, Jumpei Yamazaki, Sayumi Tahara, Masaaki Okubo, Tomohiko Kawamura, Noriyuki Horiguchi, Takamitsu Ishizuka, Mitsuo Nagasaka, Yoshihito Nakagawa, Tomoyuki Shibata, Makoto Kuroda, Naoki Ohmiya
DNA methylation is associated with "field defect" in the gastric mucosa. To characterize "field defect" morphologically, we examined DNA methylation of non-neoplastic gastric mucosa in relation to their morphology seen by narrow-band imaging (NBI) with magnifying endoscopy. Magnifying NBI of non-neoplastic gastric body was classified as follows: normal-small and round pits with uniform subepithelial capillary networks; type 1-a little enlarged round pits with indistinct subepithelial capillary networks; type 2-remarkably enlarged pits with irregular vessels; and type 3-clearly demarcated oval or tubulovillous pits with bulky coiled or wavy vessels...
June 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28591047/inverted-gastric-adenocarcinoma-of-fundic-gland-mucosa-type-colliding-with-well-differentiated-adenocarcinoma-a-case-report
#12
Keitaro Takahashi, Mikihiro Fujiya, Shin Ichihara, Kentaro Moriichi, Toshikatsu Okumura
RATIONALE: Gastric adenocarcinoma of fundic gland mucosa type (GA-FGM) is a rare tumor composed of atypical cells with differentiation toward the fundic gland as well as the foveolar epithelium. Including our case, only 9 cases of GA-FGMs were reported from 2010 to 2016. CONCERNS OF THE PATIENT: An 87-year-old man was referred to our institution for endoscopic resection of a gastric lesion. The tumor was classified as type 0-I + IIa according to the Paris classification...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28552126/hue-texture-embedded-region-based-model-for-magnifying-endoscopy-with-narrow-band-imaging-image-segmentation-based-on-visual-features
#13
Xiaoqi Liu, Chengliang Wang, Jianying Bai, Guobin Liao, Yanjun Zhao
BACKGROUND AND OBJECTIVE: Magnification endoscopy with narrow-band imaging (ME-NBI) has become a feasible tool for detecting diseases within the human gastrointestinal tract, and is more applied by physicians to search for pathological abnormalities with gastric cancer such as precancerous lesions, early gastric cancer and advanced cancer. In order to improve the reliability of diseases detection, there is a need for applying or proposing computer-assisted methodologies to efficiently analyze and process ME-NBI images...
July 2017: Computer Methods and Programs in Biomedicine
https://www.readbyqxmd.com/read/28547665/comparison-of-endoscopic-ultrasonography-and-magnifying-endoscopy-for-assessment-of-the-invasion-depth-of-shallow-gastrointestinal-neoplasms-a-systematic-review-and-meta-analysis
#14
Zhang Tao, Chen Yan, He Zhao, Jiawei Tsauo, Xiaowu Zhang, Bing Qiu, Yanqing Zhao, Xiao Li
OBJECTIVES: To conduct a meta-analysis to provide accurate evidence regarding the preferred diagnostic method, magnifying endoscopy (ME) or endoscopic ultrasonography (EUS), for assessment of the depth of invasion of the gastrointestinal neoplasms. METHODS: PubMed, EMBASE, Ovid Medline, and the Cochrane Library databases were searched for studies published between January 1946 and October 2016, regarding the use of EUS and ME to assess the invasion depth of gastrointestinal cancers...
May 25, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28501592/endoscopic-and-molecular-characterization-of-colorectal-sessile-serrated-adenoma-polyps-with-cytological-dysplasia
#15
Yoshihito Tanaka, Hiro-O Yamano, Eiichiro Yamamoto, Hiro-O Matushita, Hironori Aoki, Kenjiro Yoshikawa, Ryo Takagi, Eiji Harada, Michiko Nakaoka, Yuko Yoshida, Makoto Eizuka, Tamotsu Sugai, Hiromu Suzuki, Hiroshi Nakase
BACKGROUND AND AIMS: Sessile serrated adenoma/polyps (SSA/Ps), which are precursor lesions of colorectal cancer (CRC) with BRAF mutation and the CpG island methylator phenotype (CIMP), develop cytological dysplasia (CD) during the progression of colorectal tumorigenesis. In the present study, we aimed to clarify the endoscopic and molecular signatures of SSA/Ps, with and without CD. METHODS: A series of 208 serrated lesions, including 41 hyperplastic polyps (HPs), 90 SSA/Ps, 33 SSA/Ps with CD and 44 traditional serrated adenomas (TSAs), were observed and resected using magnifying endoscopy...
May 10, 2017: Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28472835/narrow-band-imaging-in-the-diagnosis-of-deep-submucosal-colorectal-cancers-a-systematic-review-and-meta-analysis
#16
Qing-Wei Zhang, La-Mei Teng, Xin-Tian Zhang, Jing-Jing Zhang, Ying Zhou, Zhi-Rui Zhou, Yi-Chao Hou, Zhi-Zheng Ge, Xiao-Bo Li
Background and aims Magnifying endoscopy with narrow-band imaging (M-NBI) has been widely used in the differential diagnosis of deep submucosal colorectal cancers (dSMCs) from superficial submucosal cancers (sSMCs) and intramucosal neoplasms. We aimed to pool the diagnostic efficacy of M-NBI and compare it with that of magnifying chromoendoscopy (M-CE) in diagnosing colorectal dSMC. Methods PubMed, EMBASE, and the Cochrane Library were searched to identify eligible studies. Meeting abstracts were also searched...
May 4, 2017: Endoscopy
https://www.readbyqxmd.com/read/28469360/investigation-of-mucosal-pattern-of-gastric-antrum-using-magnifying-narrow-band-imaging-in-patients-with-chronic-atrophic-fundic-gastritis
#17
Yasushi Yamasaki, Noriya Uedo, Hiromitsu Kanzaki, Minoru Kato, Kenta Hamada, Kenji Aoi, Yusuke Tonai, Noriko Matsuura, Takashi Kanesaka, Takeshi Yamashina, Tomofumi Akasaka, Noboru Hanaoka, Yoji Takeuchi, Koji Higashino, Ryu Ishihara, Yasuhiko Tomita, Hiroyasu Iishi
BACKGROUND: Magnifying narrow-band imaging (M-NBI) can reportedly help predict the presence and distribution of atrophy and intestinal metaplasia in the gastric corpus. However, the micro-mucosal pattern of the antrum shown by M-NBI differs from that of the corpus. We studied the distribution and histology of the micro-mucosal pattern in the antrum based on magnifying endoscopy. METHODS: Endoscopic images of the greater curvature of the antrum were evaluated in 50 patients with chronic atrophic fundic gastritis (CAFG)...
2017: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
https://www.readbyqxmd.com/read/28449341/gastrointestinal-idiopathic-granulomatous-gastritis-observed-by-magnifying-narrow-band-imaging-endoscopy
#18
K Kawasaki, K Kurahara, Y Oshiro, K Ohtsu, S Nakamura, T Fuchigami, T Matsumoto
No abstract text is available yet for this article.
May 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28445275/cases-of-primary-malignant-melanoma-and-melanocytosis-of-the-esophagus-observed-by-magnifying-endoscopy-application-to-differential-diagnosis-case-series
#19
Hiroyuki Ohnuma, Kazuma Ishikawa, Masahiro Hirakawa, Shohei Kikuchi, Yasushi Sato, Koji Miyanishi, Junji Kato
RATIONALE: Primary malignant melanoma of the esophagus (PMME) is a rare disease with an extremely poor prognosis. In contrast, melanocytosis is a benign condition defined as melanocytic proliferation with melanin deposition. PMME is often accompanied by melanocytosis, but differentiating between them is difficult because of their similar appearance. PATIENT CONCERNS: Here, we reported 3 PMME cases, 2 with melanocytosis. DIAGNOSES: Magnifying endoscopy revealed characteristic non-uniform pigmented spots along deformed intrapapillary capillary loops (IPCLs) in PMME, while melanocytosis showed fine granule-like or linearly arranged spots and intact IPCLs...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28395383/extending-magnifying-nbi-diagnosis-of-intestinal-metaplasia-in-the-stomach-the-white-opaque-substance-marker
#20
Takao Kanemitsu, Kenshi Yao, Takashi Nagahama, Kentaro Imamura, Shoko Fujiwara, Toshiharu Ueki, Kenta Chuman, Hiroshi Tanabe, Ota Atsuko, Akinori Iwashita, Toshio Shimokawa, Kunihisa Uchita, Takashi Kanesaka
Background and aims Intestinal metaplasia (IM) of the stomach is associated with an increased risk of differentiated gastric cancer. While it is important to diagnose IM endoscopically, it can be difficult to observe by white-light endoscopy. In magnifying endoscopy with narrow-band imaging (M-NBI) of the stomach, a light-blue crest (LBC) is widely known to be a useful marker in the endoscopic diagnosis of IM. However, IM that exhibits only white opaque substance (WOS) without an LBC can also occur. The aim of this study was to elucidate whether the presence of WOS on M-NBI of the stomach could serve as a marker of IM in the same way that an LBC does...
June 2017: Endoscopy
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