Metastasis: Breast Lesion
Cancers are sorted by a combination of rarity, overall frequency of metastases, and predilection for this site. Group metastases by characteristic.
| Cancer | Frequency | Comments |
| Melanoma | Uncommon |  one of the most common extra-mammary breast metastases
|
| Breast Adenocarcinoma | Very Rare | most common origin of a metastatic lesion in the breast
Cancer. 2001 Nov 1;92(9):2259-66. PMID: 11745279 |
| Endometrial Cancer | Very Rare | |
| Medullary Thyroid Carcinoma | Very Rare | |
| Non-Hodgkin's Lymphoma | Very Rare |  one of the most common sites of origin for extra-mammary metastatic disease to the breast
|
| Medulloblastoma | Very Rare | |