Fig. (1). Representative immunohistochemistry slides of paraffin-embedded GCT of bone tissue specimens for MMP-2 and MMP-9.
(A) MMP-2 antibody staining at x400 magnification. (B) MMP-9 antibody staining at x400 magnification. MMP-2 and MMP-9 staining was positive in the cytoplasm of the multinucleated giant cells (solid arrows), and diffusely positive in the spindle-like stromal cells (dotted arrows). (C) Representative paraffin-embedded immunohistochemistry negative control with the absence of a primary antibody (H+E, original magnification X400).