Synovial Cysts of the Temporomandibular Joint: An Immunohistochemical Characterization and Literature Review
Figure 4
Immunohistochemical staining against vimentin (a1), D2-40 (b1), HSP-70 (a2), metallothionein (b2), CD68 (a3), and HLA-DR (b3) showing the immunoreactivity profile of the synovial cyst, with a lining of predominantly spindle-shaped cells (vimentin, D2-40, HSP-80, and metallothionein positive; type B synoviocytes) and a small population of CD68+ cells (type A synoviocytes) highlighted by HLA-DR staining (VT: 250x; D2-40,200x; HSP-70: 200x; metallothionein: 250x; CD68: 250x; HLA-DR: 400x).
