Fig. 5From: Dedifferentiated parosteal osteosarcoma of the maxilla: a case report and review of the literatureImmunohistochemical staining findings demonstrating the origin of atypical spindle cells. a, b Positive findings of RUNX-2 and SATB2 staining osteoblastic cell. c SOX-9 positive indicated by arrows suggests the origin of these spindle cells from cartilage cellsBack to article page