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Difference between revisions of "Bone"
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→Aneurysmal bone cyst: more
(→Aneurysmal bone cyst: more) |
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| Line 116: | Line 116: | ||
===Microscopic=== | ===Microscopic=== | ||
Features:<ref name=emed_abc/> | Features:<ref name=emed_abc/> | ||
*Bony trabeculae or osteoid tissue. | *Bony trabeculae ''or'' osteoid tissue. | ||
*Osteoclast giant cells. | *Osteoclast giant cells. | ||
**Multi-nucleated giant-cells with round randomly arranged nuclei. | **Multi-nucleated giant-cells with round randomly arranged nuclei. | ||
* | *Benign spindle cells (fibroblasts) - surround bone/adjacent to the giant cells. | ||
DDx: | DDx: | ||
| Line 125: | Line 125: | ||
*Telangiectatic [[osteosarcoma]]. | *Telangiectatic [[osteosarcoma]]. | ||
*Other [[giant cell lesions]]. | *Other [[giant cell lesions]]. | ||
Images: | |||
*[http://www.webpathology.com/image.asp?n=4&Case=344 ABC - low mag. (webpathology.com)]. | |||
*[http://www.webpathology.com/image.asp?n=5&Case=344 ABC - intermed. mag. (webpathology.com)]. | |||
*[http://www.webpathology.com/image.asp?case=344&n=6 ABC - high mag. (webpathology.com)]. | |||
==Myositis ossificans== | ==Myositis ossificans== | ||