A polypoid bone tumor covered by a cap of hyaline cartilage of varying thickness and showing a core of cancellous bone. No evidence of specific granulomas. No evidence of malignancy.
Right posterior distal femur bony tumor,?? exostosis
Bone fragments collectively measured 6.5x5x1.8 cm, totally embedded.
Right posterior distal femur bony tumor, excision biopsy: