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Case Reports: Rare disease
Osseous metaplasia in a rectal polyp
  1. Ananyan Sampath1,
  2. Hemalata Panwar2,
  3. Neelkamal N A Kapoor2 and
  4. Pramod Kumar Sharma3
  1. 1All India Institute of Medical Science, Bhopal, Madhya Pradesh, India
  2. 2Department of Pathology, All India Institute of Medical Science, Bhopal, Madhya Pradesh, India
  3. 3Pediatric Surgery, All India Institute of Medical Science, Bhopal, Madhya Pradesh, India
  1. Correspondence to Dr Hemalata Panwar; hemlata.patho{at}aiimsbhopal.edu.in

Abstract

Rectal polyps are finger-like projections of the mucosal surface that generally present with complaints of bleeding or mass per rectum. Polyps are classified histopathologically as neoplastic and non-neoplastic. Here, we present one such rare case of a middle-childhood boy who presented with complaints of bleeding per-rectum and revealed a 1.5 cm long rectal polyp. Histopathological examination revealed an osseous change in the rectal polyp. A detailed literature review of reported cases of benign rectal polyps with osseous metaplasia was conducted and consolidated all postulated theories of pathogenesis. This case report shows an interesting incidental finding of osseous metaplasia of the rectal polyp.

  • Endoscopy
  • GI bleeding
  • Paediatric oncology
  • Pathology

https://doi.org/10.1136/bcr-2023-254819

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    Footnotes

    • Twitter @AnanyanSampath

    • Contributors The following authors were responsible for drafting of the text, sourcing and editing of clinical images, investigation results, drawing original diagrams and algorithms, and critical revision for important intellectual content: AS, HP. The following authors gave final approval of the manuscript: AS, HP, PS, NK.

    • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

    • Case reports provide a valuable learning resource for the scientific community and can indicate areas of interest for future research. They should not be used in isolation to guide treatment choices or public health policy.

    • Competing interests None declared.

    • Provenance and peer review Not commissioned; externally peer reviewed.