Lipogranuloma with osseous metaplasia in the breast that developed after "Bu-Hwang" oriental medicine treatment

A lipogranuloma is an inflammatory reactive process associated with exogenous or endogenous lipids, and it's occurrence in the breast has rarely been reported. Osseous metaplasia, which is used to describe bone formation in abnormal locations, can develop from several conditions such as trauma or a tumor. However, few studies have reported benign breast lesions that have been seen as osseous metaplasia. We present a case of a benign calcified breast lesion that developed after a traumatic treatment process called "Bu-Hwang", and it was confirmed as a lipogranuloma with osseous metaplasia. To the best of our knowledge, this is the first reported case of a lipogranuloma with osseous metaplasia in the breast.