Osseous Metaplasia in Rectal Polyp: A Case Report with Review of Probable Pathogenesis

Document Type : CASE REPORT


1 Department of Pathology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran

2 Department of Surgery, School of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran


Heterotopic bone formation is a rare event in gastrointestinal lesions, especially in the pediatric population. Osseous metaplasia is exceedingly rare in colonic polyps. We present a case of rectal juvenile polyp with stromal osseous metaplasia in a 10-year-old male child. This histologic finding is very rare in children with colorectal polyps.


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