Rosette formation of human erythrocytes on canine transmissible venereal sarcoma cells.

Human erythrocytes have been shown to form spontaneous rosettes on nonlymphoid canine transmissible venereal sarcoma cells. The tumor cell would attach on glass surface, and morphologic studies by both electron microscopy and light microscopy on Giemsa-stained rosetting tumor cells showed that they could be differentiated from the rosetting T lymphocytes in the tumor.