Traditional serrated adenoma of the sigmoid colon with osseous metaplasia: a case report

Montalvo, Nelson; Beltrán, José N; Redrobán, Ligia

doi:10.1186/1752-1947-6-133

Cited by 9 publications

(5 citation statements)

References 10 publications

(17 reference statements)

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“…12 Adenocarcinoma of the rectum seems to be the tumor most frequently found to contain the bone with a prevalence of 0.4%. [13][14][15][16][17] OM in the stomach is rarer than other parts of the gastrointestinal tract, with less than 10 cases reported in the English literature to date. [6][7][8][9][10][11] Thus far, 4 hyperplastic polyps and 2 adenomatous polyps were reported in the literature.…”

Section: Discussionmentioning

confidence: 99%

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Osseous Metaplasia in a Gastric Adenoma of the Stomach

et al. 2022

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Osseous metaplasia (OM) in the stomach is a rare finding, with less than 10 cases reported in the English literature to date. We present a rare case of a gastric adenoma with high-grade dysplasia and stromal OM in a 65-year-old man. The clinical, endoscopic, and histologic features along with a review of the literature are discussed. To the best of our knowledge, this is the first reported case of identifiable OM in a gastric polyp radiologically.

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Section: Discussionmentioning

confidence: 99%

“…12 Adenocarcinoma of the rectum seems to be the tumor most frequently found to contain the bone with a prevalence of 0.4%. 13–17…”

Section: Discussionmentioning

confidence: 99%

Osseous Metaplasia in a Gastric Adenoma of the Stomach

et al. 2022

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“…Heterotopic bone formation is not a common finding in colon polyps. To the best of our knowledge, 28 cases have been presented in the English literature so far (6)(7)(8)(9)(10)(11)(12)(13)(14)(15)(16)(17)(18)(19)(20)(21)(22). Eight of them were dysplastic, whereas others were inflammatory and juvenile polyps.…”

Section: Discussionmentioning

confidence: 99%

Kemik Metaplazisinin Eşlik Ettiği İnflamatuar Rektal Polip: Ayrı Bir Antite mi?

Işık

Uzuner

Bakırtaş

et al. 2021

Düzce Tıp Fakültesi Dergisi

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Osseous metaplasia is a heterotopic bone formation and it is encountered rarely in the gastrointestinal tract, especially in benign lesions. Although its pathophysiology is not known clearly, there are several theories suggested. In this case report, we presented a case of bone formation in a rectal inflammatory polyp presenting with rectal bleeding in a 7-year-old girl. Therewithal, we reviewed the literature and summarized the subject of osseous metaplasia in colon polyps. We detected some similarities in the cases presented that suggest it might be a distinctive disease entity. Osseous metaplasia in colorectal polyps is extremely rare. To our knowledge, this is the eleventh reported case of osseous metaplasia in a rectal inflammatory polyp. Although osseous metaplasia in colon polyps has not a significant effect on both clinic and the prognosis, it can be confusing when encountered in microscopic examination.

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“…The most of previous reports are associated with mucin-producing colonic adenocarcinomas [1]. Only a few of reported cases have been documented that osseous metaplasia can occur in a variety of benign conditions, such as colorectal polyps and lesions associated with inflammation and ulceration [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. Despite of distinctive morphology, the underlying pathogenesis of osseous metaplasia in gastrointestinal tract has not yet been elucidated.…”

Section: Introductionmentioning

confidence: 99%

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2017

JCRC

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Background:Osseous metaplasia occurring within the gastrointestinal tract is a rare phenomenon. Only a few of cases have been documented that osseous metaplasia can occur in colorectal polyps, although its underlying pathogenesis has not yet been elucidated. Methods: Two cases of osseous metaplasia within inflammatory and adenomatous polyps of colon, respectively.The clinical and histological features of this lesion, as well as suggested mechanisms for its pathogenesis are discussed.Results: Under the histological examination, both cases demonstrate the typical normal-looking osseous trabeculae rimmed by a layer of scattered osteoblasts in the stroma of inflammatory polyp or tubular adenoma of colon. To the best of our knowledge, they are possible the first cases of osseous metaplasia in colorectal polyps in Chinese. Conclusion:Although it has not been found to have any significance in clinical treatment and prognostic evaluation, our data suggest that persistent inflammatory process and/or pluripotent stromal cells in polyps might contribute to the formation of osseous metaplasia in colonrectal neoplastic and non-neoplastic polyps.

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Traditional serrated adenoma of the sigmoid colon with osseous metaplasia: a case report

Cited by 9 publications

References 10 publications

Osseous Metaplasia in a Gastric Adenoma of the Stomach

Osseous Metaplasia in a Gastric Adenoma of the Stomach

Kemik Metaplazisinin Eşlik Ettiği İnflamatuar Rektal Polip: Ayrı Bir Antite mi?

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