Figure 5.

Immunohistochemical findings of CMF obtained curetted surgical specimen (case no. 3). (A) Negative immunostaining with S-100 (Immunoperoxidase, ×20). (B) Negative immunostaining with AE1-AE3 (Immunoperoxidase, ×20). (C) Positive immunostaining of tumor cells with smooth muscle actin (SMA) [Immunoperoxidase, ×20]. (D) Tumor showed low proliferative index with Ki-67 labeling less than 10% of neoplastic cells (Immunoperoxidase, ×20).