Congenital arteriovenous fistula of the internal mammary vessels: report of a case and review of the literature.

The case of a congenital arteriovenous fistula of the internal mammary vessels in a 41 year-old woman has been reported, and the pertinent literature briefly reviewed. These rare lesions may become apparent only relatively late in life. The accompanyiny signs are often misleading. In view of the uncertain long-term outlook, surgery seems indicated.