PMC6018246_01
PMC6018246_02
The microscopic study of the tumor consists of cellular nests which were separated by fibrous band from each other. The forms of cells vary from round-shaped to fusiform with vesicular nucleus, prominent nucleolus and granular eosinophilic cytoplasm, mitosis were seen. Lymphocytes cells are often seen on fibrosis bands. In immunohistochemical staining, antibodies that were in keeping with clear cell carcinoma were positive against the following markers: S-100, Ki-67, Melan A & HMB45.
IJHOSCR-12-65-g001.jpg
PMC6018246_02_IJHOSCR-12-65-g001.jpg
F1
In immunohistochemical (IHC) staining, antibodies that were in keeping with clear cell sarcoma were positive against the following markers: S-100, HMB45, Melan A, and Bcl2.  Negative staining for CK, EMA, SMA, Desmin, CD34, CD56, Myogenin, and CD57 markers was also observed (Figure 1).