Figure 3.
Results of the immunohistochemical study (All figures original magnification x200). A. Only very focally, few tumor cells expressed cytokeratins (detected exclusively with AE1/3). B. Tumor cells expressed CD99. C. The majority of cells displayed loss of nuclear INI-1 expression. D. There was diffuse nuclear expression of WT-1 (antibody to the C-terminus end).