pubmed-article:2175246 | pubmed:abstractText | Myoepithelioma of the breast is rare. It is usually benign but may be locally aggressive. Its clinical behavior is unknown, but if it follows the course of similar tumors of the salivary glands, the likelihood of systemic spread is very low. Mammographic findings are nonspecific, and ultimate identification is based on ultrastructural criteria. | lld:pubmed |