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Jornal Português de Gastrenterologia
versão impressa ISSN 0872-8178
Resumo
BRANDAO, C. et al. Cromoendoscopia de ampliação de lesões polipóides gástricas . J Port Gastrenterol. [online]. 2006, vol.13, n.3, pp.126-131. ISSN 0872-8178.
Aims: To define the endoscopic pit patterns of gastric polyps (GP) by magnification chromoendoscopy and correlate them with histopathologic findings. Methods: A total of 19 patients (M: 8; F:11) with 27 GP were evaluated. The endoscopic procedure was performed with a magnification endoscope Q240Z® (Olympus Corporation) and consisted of applying a mucolytic agent followed by the spray by a 0,4% indigo carmine contrast dye spray. The pit patterns of the GP mucosa are then observed by using the maximum magnification (105x). All the polyps were then removed and sent for histopathological evaluation. Results: The histological findings were: chronic gastritis (CG)-5; intestinal metaplasia (IM)-2; inflammatory GP (INF)-12; hyperplastic GP (H)-7; adenomatous GP (AD)-1. The GP endoscopic pit patterns were classified after histological characterisation. We identified four endoscopic patterns: Type I: round or tubular; Type II: finger-shaped or bean-like; Type III: brain-like; Type IV: unstructured. Friability and mucous excess did not permit identification of an endoscopic pattern in 18,5% (n= 5) of the polyps. A correlation was established between the predominant pit patterns and the histological findings: Type I:CG/IM; Type II:INF; Type III:H; Type IV:AD. Conclusion: GP endoscopic pit patterns can, in the future, aid in selecting patients for to polypectomy.