Tumoral calcinosis is a rare clinical and histopathological syndrome whose exact etiology is unknown. We present a case of a 57-year-old woman who presents with a painful lump in her right chest after bilateral breast reconstructions for bilateral asynchronous breast cancers. It is important to be aware of all possible differential diagnoses in a patient presenting with a chest mass after mastectomy and reconstruction for breast cancer as not all lesions of this type represent recurrent cancer.