Prospective diagnostic study on the use of narrow‐band imaging on suspicious lesions during colonoscopy examination

Yaacob, Huzairi; Mohamad, Ikhwan Sani; Hashim, Mohd Nizam Md; Aziz, Syed Hassan Syed Abd; Zain, Wan Zainira Wan; Sharif, Sharifah Emilia Tuan; Hayati, Firdaus; Zakaria, Andee Dzulkarnaen

doi:10.1111/ases.12463

Cited by 2 publications

(1 citation statement)

References 11 publications

(22 reference statements)

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“… 9 We evaluated if the differences between their and our results could be explained by the experience of gastroenterologist but we did not find any association, maybe because NBI formal training was not evaluated in our study and the gastroenterologist experience may not adequately represent the experience with NBI. 16 – 18 Therefore, our findings suggest that in clinical centers without formal NBI training all polyps should be removed endoscopically for histopathology evaluation. Additionally, formal NBI training should be encouraged to improve diagnostic performance with NBI.…”

Section: Discussionmentioning

confidence: 84%

Concordance between nice classification and histopathology in colonic polyps: a tertiary center experience

Buitrago-Tamayo,

Lombo-Moreno,

Ursida

et al. 2024

Clin Med Insights Gastroenterol

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Background: Narrow-Band imaging International Colorectal Endoscopic (NICE) could reduce histopathology study requirements in colorectal polyp evaluation. Local and regional studies are required to validate its utility. Objectives: To evaluate concordance between NICE classification and histopathology. Design: Prospective analytic study performed in the Hospital Universitario San Ignacio, Bogotá (Colombia) between 2021 and 2022. Methods: Concordance between NICE I, II and III classification and histopathology [Hyperplastic Polyp (HP), adenoma and deep submucosal invasive cancer (DSIC)] was evaluated using weighted kappa. Diagnostic performance was evaluated for NICE I–II versus NICE III for DSIC versus adenoma/HP. A subgroup analysis was performed for polyps ⩾10 mm and those located in the rectum, sigmoid, and left colon. Results: A total of 238 polyps from 135 patients were evaluated. Median age 67 years (IQR 58.5–74.5), 54.4% males. 23 (17.1%) had ⩾3 polyps. Of polyps, 52.1% were located on rectum, sigmoid and left colon. A total of 182 (76.5%) were <10 mm. NICE and histopathology evidenced a fair-moderate concordance (quadratic weighted kappa 0.36, linear weighted kappa 0.43). NICE classification (NICE I–II versus III) compared to histopathology (DSIC versus adenoma/HP) evidenced a sensitivity of 90.9% and specificity of 99.1%. For DSIC diagnosis specificity was ⩾95% on polyps ⩾10 mm and those left sided located. Conclusion: NICE and histopathology concordance is suboptimal. However, NICE III for DSIC diagnosis evidence good specificity. Therefore, NICE III polyps require a prompt histopathological evaluation and follow-up. Good operative characteristics stand in polyps ⩾10 mm and left sided located. NBI formal training is recommended in gastroenterology units in Latin America.

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Section: Discussionmentioning

confidence: 84%

Concordance between nice classification and histopathology in colonic polyps: a tertiary center experience

Buitrago-Tamayo,

Lombo-Moreno,

Ursida

et al. 2024

Clin Med Insights Gastroenterol

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Malignant ulcer: a great mimicker of gastric plasmablastic lymphoma

Johan

Khairuddin

Asyraf

et al. 2021

Clin J Gastroenterol

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Plasmablastic lymphoma (PBL) is an uncommon human immunodeficiency virus (HIV)associated lymphoma, with a predilection to develop in the oral cavity. It usually has a plasmablastic morphology with weak or no expression of B cell-associated markers. Among non-HIV patients, it tends to occur in the gastrointestinal (GI) tract, lymph nodes, and skin.We experience a 74-year-old male who presented with abdominal discomfort, altered bowel habit, loss of weight, and loss of appetite with a palpable abdominal mass. Upper endoscopy revealed multiple dish-like and raised nodular mass with a central ulcer in the stomach and duodenum. The histology was consistent with high-grade lymphoma of the plasmablastic type.The immunohistochemistry was positive for plasma cells marker of CD38 and CD138, but negative for the lymphocytic marker of CD45, as well as mature T and B cell marker of CD3 and CD20. Unfortunately, the patient succumbed due to sepsis without completion of his investigations and treatments.

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Prospective diagnostic study on the use of narrow‐band imaging on suspicious lesions during colonoscopy examination

Cited by 2 publications

References 11 publications

Concordance between nice classification and histopathology in colonic polyps: a tertiary center experience

Concordance between nice classification and histopathology in colonic polyps: a tertiary center experience

Malignant ulcer: a great mimicker of gastric plasmablastic lymphoma

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