Abstract: Breast cancer is a common clinical malignancy,whereas heterotopic ossification at the surgical incision site is a rare postoperative complication.This article reports a case of heterotopic ossification that develop shortly after breast cancer surgery and lasted for one year.This condition was presumed to be associated with calcification and ossification of the surgical wound.The removal of calcified and ossified tissues was essential for wound healing.Potential contributing factors may include substances secreted by breast cancer cells and local infection.However,the exact cause warrant further investigation.

Key words: breast cancer; incision; heterotopic ossification; prolonged non-healing