Theory | Authors, year |
---|---|
1. Fetal crest | Fischer, 1913 [4] |
2. Basal cell lineage, Trauma | Ryrie, 1932 [6] |
3. Implantation | Dockerty and Meyerding, 1942 [7] |
4. Unknown | Baker et al, 1954 [8] |
5. Synovial cell like | Lederer and Sinclair, 1954 [9], Naji et al 1964 [10] |
6. Angioblastic | Changus et al, 1957, Elliot 1962, Llombart bosch and Ortuno-pacheco, 1978, Reed, 1982 [11-14] |
7. Mesenchymal | Vinogradova, 1969 [15] |
8. Dermal inclusion | Lichtenstein, 1977 [16] |
9. Epithelial cell | Jaffe, 1958, Saacebra et al, 1968, Rosai and Pincus,1982, Ishida et al,1992, Hazelbag et al, 1993, Jundt et al, 1995 [17-22] |