Figure 3: Tumor after complete resection
The histopathological examination demonstrated features of giant cell tumor tendon sheath. Cut section examination revealed greyish white mass with cystic spaces. It showed tissue exhibiting proliferation of cells. The cells were having round to oval and spindle nuclei. The cells were arranged in fascicles and storiform pattern focally. Numerous multinucleated giant cells were seen dispersed in the stroma. Areas of edema were also seen (Figure 4 and Figure 5).