Indian J Pharm Close
 

Figure 3: (a-c) Fine-needle aspiration cytology of giant-cell tumor showed spindle cell clusters and numerous osteoclasts arranged at the periphery of the clusters with checkerboard pattern (thin arrow). The mononuclear round cells show central uniform nuclei (thick arrow) (May-Grunwald-Giemsa, ×4; H and E, ×10 and ×40) (This figure of giant-cell tumor is original and is from another case. It is shown for comparison with osteoblastoma and has no relation with present case). (d-f) In contrast, fine-needle aspiration cytology of osteoblastoma showed few scattered osteoclastic giant cells (thin arrow) with fair number of osteoblasts having perinuclear hof (thick arrow) (May-Grunwald-Giemsa, ×40; H and E, ×4)

Figure 3: (a-c) Fine-needle aspiration cytology of giant-cell tumor showed spindle cell clusters and numerous osteoclasts arranged at the periphery of the clusters with checkerboard pattern (thin arrow). The mononuclear round cells show central uniform nuclei (thick arrow) (May-Grunwald-Giemsa, ×4; H and E, ×10 and ×40) (This figure of giant-cell tumor is original and is from another case. It is shown for comparison with osteoblastoma and has no relation with present case). (d-f) In contrast, fine-needle aspiration cytology of osteoblastoma showed few scattered osteoclastic giant cells (thin arrow) with fair number of osteoblasts having perinuclear hof (thick arrow) (May-Grunwald-Giemsa, ×40; H and E, ×4)