Clinical nomogram to predict bone-only metastasis in patients with early breast carcinoma.

Background: Bone is one of the most common sites of distant metastasis in breast cancer. The purpose of this study was to combine selected clinical and pathologic variables to develop a nomogram that can predict the likelihood of bone-only metastasis (BOM) as the first site of recurrence in patients with early breast cancer.

Methods: Medical records of patients with non-metastatic breast cancer were retrospectively collected.