Figure 4From: Unusual presentation of giant cell tumor originating from a facet joint of the thoracic spine in a child: a case report and review of the literature Histopathology images of the tumor. a. Low-power hematoxylin and eosin stain. The tumor showed a well-capsulated mass with packed polyhedral stromal cells and numerous multinucleated giant cells. There were a few tiny fragments of bone at the capsular area near the attached bone (black arrow) b. High-power hematoxylin and eosin stain. The main components of the tumor were polyhedral stromal cells and numerous multinucleated giant cells (black arrow). There was a lack of papillary or villiform architecture.Back to article page