Breast Neurilemmoma

Neurilemmoma is a benign neoplasm of Schwann cell origin, most frequently seen in the extremities and the trunk and head regions. Breast is a very unusual site for this tumor. We report a case of neurilemmoma of the breast in a 27-year-old woman. The palpable mass was localized in the lower outer quadrant of the right breast. This intramammary tumor appeared sonographically as a well- circumscribed, inhomogeneous solid mass. Microscopically, it had a pattern similar to that of neurilemmoma of other sites.