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Updated: May 19, 2026

Direct Mouse Trauma/Burn Model of Heterotopic Ossification
Published on: August 6, 2015
Heterotopic ossification of the abdominal wall
Niamh M Hogan1, Emer Caffrey, Stephanie Curran
1Department of Colorectal Surgery, University College Hospital Galway, Galway, Ireland.
Introduction:
Heterotopic ossification is a rare, benign condition which occurs when bone develops in tissues that do not normally ossify.
Presentation Of Case:
We herein report the case of a 73-year-old gentleman who underwent a laparotomy for a large splenic flexure tumour considered unresectable at initial intervention. Following delivery of chemotherapy, he was referred for a second opinion and the tumour with adjacent structures was removed at a subsequent laparotomy. A segment of abnormal hard tissue present in the abdominal wall was also excised. Histopathology revealed metaplastic bone deposition.
Discussion:
Heterotopic ossification may occur at various sites and is a recognised but exceedingly infrequent sequela of abdominal surgery.
Conclusion:
This case highlights clinical, aetiological and histopathological features of this rare finding.
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