Fig. 3From: Recurrent primary mediastinal giant cell tumor of soft tissue with radiological findings: a rare case report and literature reviewHE. a Mononuclear cells and multinucleated osteoclast-like giant cells were showed (×200). b Blood-filled cystic spaces were showed (×100). c, d Immunohistochemical staining (×200). CD68 showed cytoplasmic positivity. KI-67 labeling index was highBack to article page