Metastatic Malignant Neoplasm in the Breast

**Semantic type:** Neoplastic Process

**Definition:** The spread of a malignant neoplasm to the breast. This may be from a primary breast malignant neoplasm on the opposite side, or from a malignant neoplasm at a distant site.

**Synonyms:** - Breast Metastases - Breast Metastasis - Metastatic Cancer to the Breast - Metastatic Malignant Neoplasm to the Breast - Metastatic Neoplasm to the Breast - Metastatic Tumor to the Breast - Secondary malignant neoplasm of breast