Invasive cancer arising in a colonic inverted hyperplastic polyp

Fu, K.-I.; Fujii, Takeshi; Kuwayama, Hajime; Ishikawa, Tsutomu; Ueda, Yoshimichi; Fujimori, Takahiro

doi:10.1055/s-2007-995733

Cited by 5 publications

(7 citation statements)

References 4 publications

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“…These lesions look similar to so‐called “inverted hyperplastic polyps” in previous reports, most of which had been published before the concept of SSP became popular and well‐recognized. Presence of colonic crypts in submucosa has been also termed as herniation of crypts, pseudoinvasion, or epithelial‐misplacement.…”

Section: Serrated Lesions Mimicking Diverticulasupporting

confidence: 68%

Endoscopic diagnosis of sessile serrated polyp: A systematic review

Kashida

2018

Digestive Endoscopy

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The aim of the present review was to clarify how we should detect and diagnose sessile serrated polyps (SSP) endoscopically. A systematic search was conducted of MEDLINE from January 2004 through March 2018. Nine findings: (i) proximal location; (ii) size >10 mm; (iii) irregular shape; (iv) indistinctive border; (v) cloud-like surface; (vi) mucus cap; (vii) rim of debris in white-light endoscopy; (viii) dilated vessels; and (ix) dilated crypts (pits) in image-enhanced endoscopy were considered to be candidate discriminators of SSP from hyperplastic polyps. Prospective studies in a general setting are warranted to validate the above-mentioned endoscopic features of SSP during real-time colonoscopy and to determine whether these features are useful for the differential diagnosis of SSP.

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Section: Serrated Lesions Mimicking Diverticulasupporting

confidence: 68%

Endoscopic diagnosis of sessile serrated polyp: A systematic review

Kashida

2018

Digestive Endoscopy

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“…Since IHPs have benign cellular characteristics of exophytic hyperplastic polyps, overtreatment should be avoided. However, endoscopic treatment is necessary in cases with associated adenomatous findings, due to their malignant potential 4. In the present case, endoscopic treatment was appropriate for the large hyperplastic polyp.…”

mentioning

confidence: 72%

“…To date, only a few cases of IHPs associated with adenoma or adenocarcinoma have been reported 2-4. However, due to the rarity of these polyps, their malignant potential is poorly understood.…”

mentioning

confidence: 99%

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Intramucosal Colon Cancer Developing in an Inverted Hyperplastic Polyp

Choi¹,

Bae²,

Jang³

et al. 2013

Gut Liver

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“…The final diagnosis of ISLs thus depends on the histological examination of the completely resected specimen. While the malignant potential of ISLs remains to be elucidated, ISLs with malignant transformation have been rarely reported to date [27,28] . However, since ISLs actually belong to SLs, the prevalence of high-grade dysplasia or carcinoma in ISLs does not seem to be exceptional.…”

Section: Discussionmentioning

confidence: 99%

Clinicopathologic Features of Inverted Serrated Lesions of the Large Bowel

Kawasaki

Kurahara²,

Oshiro³

et al. 2016

Digestion

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Background/Aims: Serrated lesions (SLs) of the large bowel occasionally manifest as inverted growths with endophytic expansion within the muscularis mucosa. The aims of this investigation were to investigate the incidence of inverted SLs (ISLs) among SLs and to describe the clinicopathologic features. Methods: We reviewed the colonoscopy records from 2006 to 2014 at our institution and identified cases of endoscopically or surgically resected SLs, including hyperplastic polyps (HPs), sessile serrated adenomas/polyps (SSA/Ps) and traditional serrated adenomas (TSAs). The incidence of ISLs among the SLs and their colonoscopic findings were investigated retrospectively. Results: There were 35 HPs in 30 patients, 80 SSA/Ps in 65 patients and 70 TSAs in 65 patients. The incidence of ISLs was significantly higher among SSA/Ps (8.8%) and HPs (5.7%) than among TSAs (0%; p = 0.04). A predominant right-sided location, a flat-elevated configuration with a central depression and round-open pit pattern or expanded crypt openings were characteristic of ISLs of the SSA/P type. Conclusions: Right-sided flat lesions with a central depression and round or expanded crypts are indicative of ISLs of the SSA/P type.

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Invasive cancer arising in a colonic inverted hyperplastic polyp

Cited by 5 publications

References 4 publications

Endoscopic diagnosis of sessile serrated polyp: A systematic review

Endoscopic diagnosis of sessile serrated polyp: A systematic review

Intramucosal Colon Cancer Developing in an Inverted Hyperplastic Polyp

Clinicopathologic Features of Inverted Serrated Lesions of the Large Bowel

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