Osseous Metaplasia in Juvenile Polyps: Report of Four Cases and Review of Literature

Abstract

Background: There are occasional reports of osseous metaplasia (OM) occurring in gastrointestinal polyps. We report 4 cases occurring in juvenile retention polyps. Case reports: Four juvenile retention polyps presented with rectal bleeding. Microscopically there was osseous metaplasia in addition to the typical surface ulceration and granulation tissue appearance. Discussion/conclusion: Osseous metaplasia was only detected on histopathologic examination of the resected polyps. Although the clinical significance is not established, OM suggests that the polyps have been present for a longer period of time.

Keywords:

• Juvenile polyps
• osseous metaplasia
• histopathology
• case series

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The authors state that there is no conflict of interest to declare.

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