scholarly journals Gastric Hyperplastic Polyp Associated with Proliferation of Xanthoma Cells Observed by Magnification Narrow-Band Imaging Endoscopy

2009 ◽  
Vol 2009 ◽  
pp. 1-3 ◽  
Author(s):  
Shoji Hirasaki ◽  
Motoharu Kubo ◽  
Atsushi Inoue
Keyword(s):  
Digestive Tract ◽  
Endoscopic Mucosal Resection ◽  
Narrow Band ◽  
Hyperplastic Polyp ◽  
Narrow Band Imaging ◽  
Endoscopic Examination ◽  
Hyperplastic Polyps ◽  
Pedunculated Polyp ◽  
Greater Curvature ◽  
Gastric Hyperplastic Polyp

A case of gastric hyperplastic polyp with proliferation of xanthoma cells is reported. The patient was a 69-year-old man who visited our hospital for further evaluation of gastric polyps. Endoscopic examination of the upper digestive tract revealed multiple hyperplastic polyps in the gastric antrum. There was a pedunculated polyp with whitish yellow granules, 7 mm in diameter, arising from the greater curvature of the antrum. Magnification narrow-band imaging endoscopy (GIF-H260Z, Olympus) revealed long microcapillaries in the polyp but did not reveal disappearance of the mucosal microstructure or irregular branched capillaries. Endoscopic mucosal resection (EMR) was performed. Histological examination of the specimen revealed the lengthened gastric foveolae in the superficial portion and tight sheet of foamy histiocytes in the lamina propria. Diagnosis of gastric hyperplastic polyp with proliferation of xanthoma cells was made. There was no evidence of malignancy. It is necessary to know that a gastric hyperplastic polyp may associate with gastric xanthoma, although such association is very rare.

Rare Primary Esophageal Paget’s Disease Diagnosed on a Large Bloc Specimen Obtained by Endoscopic Mucosal Resection

2017 ◽  
Vol 26 (4) ◽  
pp. 417-420 ◽  
Author(s):  
Hirohito Mori ◽  
Maki Ayaki ◽  
Hideki Kobara ◽  
Yasuhiro Goda ◽  
Noriko Nishiyama ◽  
...  
Keyword(s):  
Endoscopic Mucosal Resection ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Case Reports ◽  
Paget’S Disease ◽  
Paget's Disease ◽  
Endoscopic Examination ◽  
Capillary Loop ◽  
Mucosal Resection ◽  
Cap Method

Primary esophageal Paget’s disease is rare. Only a few case reports have described the intraepithelial papillary capillary loop (IPCL) pattern obtained by magnified Narrow Band Imaging (M-NBI) endoscopy in this rare pathology. This report highlights the usefulness of M-NBI and the successful diagnosis using a large bloc specimen obtained by endoscopic mucosal resection with the cap method (EMR−c). A 53-year-old man was referred to endoscopic examination for dysphagia. The endoscopic image revealed a ring-shaped scarring of the esophagus suggestive for eosinophilic esophagitis. The IPCL pattern by M-NBI endoscopy showed an inflammatory pattern, and the entire epithelium of the esophagus was not stained by Lugol iodine spraying. Based on six biopsies randomly performed, a poorly differentiated adenocarcinoma was diagnosed. Since the M-NBI pattern and the histology were completely different, EMR−c was performed to obtain large bloc specimens for a more detailed diagnosis. The pathological findings revealed extensive Paget’s cells infiltration into the epithelium and multifocal invasion from the mucosa to the submucosal layer with adenocarcinoma. In conclusion, a large bloc specimen by EMR-c might be more useful than a small biopsy for an accurate diagnosis of the rare esophageal Paget’s disease.Key words:  –  – .Abbreviations: EMR−c: endoscopic mucosal resection with cap method; IPCL: intraepithelial papillary capillary loop; LVLs: Lugol-voiding lesions; M-NBI: magnified Narrow Band Imaging; PET-CT: Positron-Emission Tomography and Computed Tomography.

A case of osseous metaplasia in a gastric hyperplastic polyp: An unexpected finding in a common polyp

2021 ◽  
Vol 156 (Supplement_1) ◽  
pp. S69-S70
Author(s):  
Y Zhang ◽  
Y Nakanishi
Keyword(s):  
Bone Formation ◽  
Hyperplastic Polyp ◽  
Case Reports ◽  
Osseous Metaplasia ◽  
Heterotopic Bone ◽  
Heterotopic Bone Formation ◽  
Hyperplastic Polyps ◽  
History Of ◽  
Acute And Chronic Inflammation ◽  
Gastric Hyperplastic Polyp

Abstract Introduction/Objective Foveolar hyperplastic polyp is a common gastric polyp characterized by foveolar hyperplasia with erosion, acute and chronic inflammation, granulation tissue formation, and smooth muscle strands extending from the muscularis mucosae. Although foveolar hyperplastic polyps may rarely contain foci of dysplasia or invasive carcinoma, osseous metaplasia/heterotopic bone formation in foveolar hyperplastic polyps of the stomach is extremely rare with a few case reports. Methods/Case Report A 63-year-old female with a history of hypertension, sick sinus syndrome, and Hashimoto’s thyroiditis was referred to our facility for evaluation of a mass in segment eight of the liver. The liver biopsy showed a moderately differentiated adenocarcinoma, most consistent with intrahepatic cholangiocarcinoma. A screening gastrointestinal endoscopy revealed a 7-mm sessile polyp in the antrum. The polyp was removed with a cold snare. No other abnormalities were identified in the stomach. Sections of the polyp showed fragments of antral-type gastric mucosa with foveolar hyperplasia, erosion, acute and chronic inflammation, and focal granulation tissue formation. In addition, multiple foci of woven bone formation without bone marrow surrounding dilated gastric foveolae were identified. No Helicobacter infection, intestinal metaplasia, dysplasia or malignancy was identified histologically. Osseous metaplasia/heterotopic bone formation is a well-known finding reported in various neoplastic and non- neoplastic conditions. However, osseous metaplasia in foveolar hyperplastic polyps of the stomach is extremely rare. There have been only four previous case reports published in English language. Our current case shows clinicopathologic features similar to those of the previous case reports including the findings of small-sized polyp found incidentally in middle-aged patients with no clinical history of hypercalcemia or any other abnormalities causing heterotopic bone formation. Results (if a Case Study enter NA) N/A Conclusion Although the pathogenesis of osseous metaplasia in a gastric hyperplastic polyp remains unknown, the finding of osseous metaplasia in a gastric hyperplastic polyp is very intriguing.

scholarly journals Endocytoscopy with NBI has the potential to correctly diagnose diminutive colorectal polyps that are difficult to diagnose using conventional NBI

2020 ◽  
Vol 08 (03) ◽  
pp. E360-E367
Author(s):  
Shinichi Kataoka ◽  
Shin-ei Kudo ◽  
Masashi Misawa ◽  
Hiroki Nakamura ◽  
Kenichi Takeda ◽  
...  
Keyword(s):  
Retrospective Study ◽  
Blood Vessel ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Colorectal Polyps ◽  
Hyperplastic Polyps ◽  
Predictive Values ◽  
Neoplastic Lesions ◽  
Sensitivity Specificity ◽  
Time Diagnosis

Abstract Background and study aims Real-time diagnosis of colorectal polyps is needed to prevent unnecessary resection of benign polyps. The vessels in hyperplastic polyps sometimes mimic the characteristic meshed capillary network of neoplastic lesions on non-magnified narrow-band imaging (NBI). Endocytoscopy in conjunction with NBI (EC-NBI) enables more detailed vessel observation. The current study evaluated whether EC-NBI can accurately diagnose small colorectal lesions with visible vessels on non-magnified NBI. Patients and methods This retrospective study was conducted from January to December 2016. During colonoscopy, lesion images were obtained using NBI and EC-NBI. On EC-NBI, lesions were classified as having “clear,” “unclear,” or “invisible” blood vessel margins. All specimens were resected and pathologically examined, and the association between vessel margin findings and pathological diagnosis was assessed. The lesion surface to vessel depth was measured in clear, unclear, and invisible lesions. Results Among 114 adenomas, 108 were clear, while six were unclear. Among 36 hyperplastic polyps, eight were clear, while 28 were unclear. A micro-network (MN) pattern was seen in 106 of 114 adenomas, and four of 36 hyperplastic polyps. The sensitivity, specificity, correct diagnostic rate, and positive and negative predictive values of clear blood vessel margins or a MN pattern as an adenoma index were 98.2 %, 69.4 %, 91.3 %, 91.1 %, and 92.6 %, respectively. EC-NBI correctly diagnosed 69.4 % (25/36) of hyperplastic polyps. The lesion surface–blood vessel distance was greater in unclear versus clear lesions (P < 0.001), and invisible versus unclear lesions (P < 0.001). Conclusions EC-NBI may effectively differentiate hyperplastic polyps with visible vessels from adenomas. Blood vessel depth affects visibility.

Detection Rate of Pharyngeal Cancer in High-Risk Groups By Endoscopic Examination with Narrow Band Imaging (NBI): Single-Center Experience in 103 Patients

2009 ◽  
Vol 69 (5) ◽  
pp. AB209-AB210
Author(s):  
Mayuko Saito ◽  
Kentaro Yamashita ◽  
Kayo Murakami ◽  
Kei Onodera ◽  
Haruo Shimizu ◽  
...  
Keyword(s):  
High Risk ◽  
Detection Rate ◽  
Narrow Band ◽  
Narrow Band Imaging ◽  
Risk Groups ◽  
Endoscopic Examination ◽  
Single Center ◽  
Pharyngeal Cancer ◽  
Single Center Experience

scholarly journals Papillary Adenocarcinoma Occurring in a Gastric Hyperplastic Polyp Observed by Magnifying Endoscopy and Treated with Endoscopic Mucosal Resection

2008 ◽  
Vol 47 (10) ◽  
pp. 949-952 ◽  
Author(s):  
Shoji Hirasaki ◽  
Hiromitsu Kanzaki ◽  
Kohei Fujita ◽  
Shuji Matsumura ◽  
Eiji Matsumoto ◽  
...  
Keyword(s):  
Endoscopic Mucosal Resection ◽  
Hyperplastic Polyp ◽  
Papillary Adenocarcinoma ◽  
Magnifying Endoscopy ◽  
Mucosal Resection ◽  
Gastric Hyperplastic Polyp

scholarly journals Optical biopsy of sessile serrated adenomas: do these lesions resemble hyperplastic polyps under narrow-band imaging?

2013 ◽  
Vol 78 (6) ◽  
pp. 902-909 ◽  
Author(s):  
Sheila Kumar ◽  
Ann Fioritto ◽  
Aya Mitani ◽  
Manisha Desai ◽  
Naresh Gunaratnam ◽  
...  
Keyword(s):  
Narrow Band ◽  
Narrow Band Imaging ◽  
Optical Biopsy ◽  
Hyperplastic Polyps ◽  
Serrated Adenomas

Magnifying endoscopy combined with narrow band imaging may help to predict neoplasia coexisting with gastric hyperplastic polyps

2013 ◽  
Vol 48 (5) ◽  
pp. 626-632 ◽  
Author(s):  
Hiroshi Horiuchi ◽  
Mitsuru Kaise ◽  
Hiroko Inomata ◽  
Yukinaga Yoshida ◽  
Masayuki Kato ◽  
...  
Keyword(s):  
Narrow Band ◽  
Narrow Band Imaging ◽  
Magnifying Endoscopy ◽  
Hyperplastic Polyps

scholarly journals Adenocarcinoma intramucoso en pólipo hiperplásico gástrico con resolución endoscópica

2021 ◽  
Vol 113 (2) ◽  
pp. 253-257
Author(s):  
José G. Yaryura Montero ◽  
◽  
Mario A. Cafaro ◽  
Ricardo A. Gigena ◽  
Ramiro X. Casa ◽  
...  
Keyword(s):  
Gastric Cancer ◽  
Gastrointestinal Endoscopy ◽  
Hyperplastic Polyp ◽  
Endoscopic Polypectomy ◽  
Upper Gastrointestinal Endoscopy ◽  
Hyperplastic Polyps ◽  
Review Of The Literature ◽  
Invasive Treatment ◽  
Upper Gastrointestinal ◽  
Gastric Hyperplastic Polyp

The prevalence of gastric polyps during upper gastrointestinal endoscopies is 6%, and 17% correspond to gastric hyperplastic polyps. They are usually incidentally found during upper gastrointestinal endoscopy; yet, large polyps may become symptomatic. The prevalence of gastric cancer in gastric hyperplastic polyps is 2.1%. The aim of this paper is to describe an atypical presentation of this disease with review of the literature. A 73-year-old male patient with anemia and subsequent diagnosis of early gastric cancer in a gastric hyperplastic polyp was treated with endoscopic polypectomy with endoloop.Minimally invasive treatment by endoscopic resection is sufficient in this type of patients.

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