Fig. 3
From: Dendritic and mast cell involvement in the inflammatory response to primary malignant bone tumours
Immunohistochemistry for the macrophage marker CD68 in chondrosarcoma showing: a absence of TAMs in low-grade chondrosarcoma. b Scattered (+) TAMs in areas of matrix mineralisation within the tumour. c Absence of TAMs in the low-grade cartilaginous component (left) but scattered (+) TAMs in the high-grade sarcomatous component (right) of a dedifferentiated chondrosarcoma