“…is case demonstrates development of a cardiac pleomorphic sarcoma, a rare tumor, after placement of a Dacron graft. Given that foreign bodies have been found to induce sarcomas in experimental animals, 3,4 and a few case reports have described sarcomas arising in association with Dacron vascular prostheses, [5][6][7][8][9][10] it seems that an exuberant host response around the foreign body might represent an important intermediate step in the development of the sarcoma.…”