Difference between revisions of "Bone"

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Bone (view source)

Revision as of 02:47, 25 February 2014

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→‎Fibrous dysplasia: split out
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==Fibrous dysplasia==
==Fibrous dysplasia==
*[[AKA]] ''osteitis fibrosa''.
*[[AKA]] ''osteitis fibrosa''.
===General===
{{Main|Fibrous dysplasia}}
Classification:
*''Monostotic'' - one bone involved, ~80% of cases.
*''Polyostotic'' - several bones involved, ~20% of cases.
**May be associated with [[McCune-Albright syndrome]].
 
===Microscopic===
Features:<ref>URL: [http://www.pathologypics.com/pictview.aspx?id=104 http://www.pathologypics.com/pictview.aspx?id=104]. Accessed on: 14 April 2011.</ref>
*Woven bone with odd irregular shapes - '''key feature'''.
**Described as "chinese characters".<ref>URL: [http://www.pathcases.com/bone_tumors_and_tumor.htm http://www.pathcases.com/bone_tumors_and_tumor.htm]. Accessed on: 31 May 2011.</ref>
*Fibrous tissue around bone.
 
Notes:
*No osteoblastic rimming.
 
DDx:
*[[Desmoplastic fibroma]] - has lamellar bone.
*Low grade [[fibrosarcoma]].
*[[Low-grade central osteosarcoma]].<ref name=inwards>{{cite journal |author=Inwards, CY |title=Low-grade central osteosarcoma versus fibrous dysplasia |journal=Pathology Case Reviews |volume=6 |issue=1 |pages=22-27 |year=2001 |pmid= |doi= |url= http://journals.lww.com/pathologycasereviews/Fulltext/2001/01000/Low_Grade_Central_Osteosarcoma_Versus_Fibrous.5.aspx }}</ref>
 
====Images====
<gallery>
Image:Fibrous_dysplasia_-_low_mag.jpg | Fibrous dysplasia - low mag. (WC/Nephron)
Image:Fibrous_dysplasia_-_intermed_mag.jpg | Fibrous dysplasia - intermed. mag. (WC/Nephron)
Image:Fibrous_dysplasia_-_high_mag.jpg | Fibrous dysplasia - high mag. (WC/Nephron)
</gallery>
www:
*[http://www.pathologypics.com/pictview.aspx?id=104 Fibrous dysplasia of bone - high mag. (pathologypics.com)].
*[http://www.pathologypics.com/BigPicViewer.aspx?PictureID=103 Fibrous dysplasia of bone - low mag. (pathologypics.com)].


==Desmoplastic fibroma==
==Desmoplastic fibroma==
Michael
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