[Tracheal transplantation in inbred strains of rats.--III. The morphologic substratum of host-versus-graft reaction (author's transl)].

After isogeneic, allogeneic and allogeneic second-set tracheal transplantations gradually different morphological signs of a chronic host-versus-graft reaction in the wall of the transplants are observed. In no case there was a complete necrosis by rejection evident.