Osseous metaplasia in an ulcerating tubular adenoma of the colon: A case report

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Abstract

Introduction: Heterotopic bone is rarely found in the gastrointestinal tract. Here we report a rare case of metaplastic ossification within a benign ulcerating adenoma and review the literature concerning the aetiology. Case presentation: A 63-year-old woman, who presented with a history of melaena, was found at colonoscopy to have a pedunculated ulcerating polyp. Histological examination demonstrated multiple areas of osseous metaplasia within the polyp stroma. Conclusion: Heterotopic ossification in colonic adenomas is a particularly rare phenomenon, with the majority of cases occurring within malignant lesions. The suggested mechanisms for its aetiology still remain unclear. © 2008 White et al; licensee BioMed Central Ltd.

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White, V., Shaw, A. G., Tierney, G. M., Lund, J. N., & Semeraro, D. (2008). Osseous metaplasia in an ulcerating tubular adenoma of the colon: A case report. Journal of Medical Case Reports, 2. https://doi.org/10.1186/1752-1947-2-130

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