Solitary Bone Cyst Like Areas in Myositis Ossificans: A Breast Mass in a Child

Abstract

Background Myositis ossificans is an extraosseous, benign tumor-like condition characterized by prominent heterotopic ossification. Cystic degeneration in myositis ossificans is an uncommon entity. Case report: A 13-year-old girl presented with a large and painful breast lump. Physical examination revealed a mobile, hard mass, clinically resembling a fibroadenoma. The mass was excised and diagnosed as myositis ossificans with central bone cyst like changes. Conclusion: Our case represents the first myositis ossificans case with central bone cyst like changes in a child.

Keywords:

• solitary bone cyst
• breast
• child
• myositis ossificans

Disclosure statement

The authors report no conflict of interest.