PMC4038868_01
MRI of the brain showing extensive lesion involving the clivus
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F1
In view of the enlarging size of the lesion and increase in headache, the patient was planned for resurgery [Figure 1].
(a) Sheets of histiocytes with small round nuclei and clear cytoplasm (H and E, x100) and (b) Sheets of histiocytes with small round nuclei and clear cytoplasm (H and E, x400)
AJNS-9-48-g002.jpg
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F2
Bony trabeculae rimmed by osteoblasts are noted in some foci [Figures 2 and 3].
Tumor showing multiple osteoclast-like giant cells admixed with stromal cells (H and E, x100)
AJNS-9-48-g003.jpg
PMC4038868_01_AJNS-9-48-g003.jpg
F3
Bony trabeculae rimmed by osteoblasts are noted in some foci [Figures 2 and 3].