KMID : 1188320100040040498
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Gut and Liver 2010 Volume.4 No. 4 p.498 ~ p.502
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A Significant Number of Sessile Serrated Adenomas Might Not Be Accurately Diagnosed in Daily Practice
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Kim Soo-Woong
Cha Jae-Myung Lee Joung-Il Joo Kwang-Ro Shin Hyun-Phill Kim Gou-Young Lim Sung-Jig
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Abstract
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Background/Aims: The diagnosis of hyperplastic polyps (HPs) may involve a conglomeration of subgroups of serrated polyps. The diagnosis of HPs may therefore be revisited if this is sessile serrated adenoma (SSA). The aim of this study was to determine clinically and endoscopically relevant information associated with reclassification to SSA.
Methods: After reviewing the data from 1,372 patients who underwent colonoscopic polypectomy, 49 HPs larger than 10 mm were analyzed in this study. Two gastrointestinal pathologists reclassified each of the original 49 HPs as conventional HPs, SSAs, and others.
Results: Among the 49 initially diagnosed HPs, 18.4% were reclassified into SSAs or mixed polyps. Overall architectural features were useful for the diagnosis of SSA, but cytological features were less useful. The patient and polyp characteristics did not differ between HPs with and without reclassification of the initial pathological diagnosis.
Conclusions: A significant number of SSAs might not be accurately diagnosed in daily clinical practice without any predilection for size, shape, and location. Therefore, when large HPs are diagnosed in clinical practice, it is necessary for physicians to have greater awareness of the diagnosis of SSA and to individualize subsequent surveillance.
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KEYWORD
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Colorectal polyp, Hyperplastic polyp, Sessile serrated adenoma
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