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*Subchondral [[necrosis]] of bone - '''key feature'''. | *Subchondral [[necrosis]] of bone - '''key feature'''. | ||
**Loss of osteocytes within the bony trabeculae. | **Loss of osteocytes within the bony trabeculae. | ||
*Reactive woven bone: | *Reactive [[woven bone]]: | ||
**Thickened trabeculae. | **Thickened trabeculae. | ||
**Increased numbers of osteoblasts and osteoclasts. | **Increased numbers of osteoblasts and osteoclasts. |
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