Difference between revisions of "Chondro-osseous tumours"

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Chondro-osseous tumours (view source)

Revision as of 19:21, 30 April 2012

721 bytes added ,  19:21, 30 April 2012
→‎Subtypes: add subtypes
(replace TN ref)
(→‎Subtypes: add subtypes)
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*Conventional osteosarcoma (high grade).
*Conventional osteosarcoma (high grade).
**Osteoblastic.
**Osteoblastic.
**Fibroblastic - [[undifferentiated pleomorphic sarcoma]]-like/[[MFH]]-like.
**Fibroblastic.
***Images: [http://path.upmc.edu/cases/case44.html Fibroblastic osteosarcoma (upmc.edu)].
**Chondroblastic.
**Chondroblastic - may be confused with [[chondrosarcoma]].
*Small cell.
*Small cell - may mimic (other) [[small round cell tumours]].
*Telangiectatic.
*Telangiectatic - extremely vascular.
*Parosteal.
*Parosteal.
**Low grade.
**Arises from surface of bone.<ref>{{Ref WHOSTAB|279}}</ref>
*Periosteal.
*Periosteal.
*Low grade central.
*Low grade central.
*High grade surface.
*High grade surface.
*Secondary - arise due to something else (e.g. [[Paget disease of the bone]] (~80% of secondary osteosarcomas),  radiation (~15% of secondary osteosarcomas)).<ref>URL: [http://www.rsna.org/REG/publications/rg/afip/privateM/1997/0017/0005/1205/6.htm http://www.rsna.org/REG/publications/rg/afip/privateM/1997/0017/0005/1205/6.htm]. Accessed on: 8 April 2011.</ref>
*Secondary.
**Images: [http://path.upmc.edu/cases/case598.html Secondary osteosarcoma - several images (upmc.edu)].
*Gnathic - jaw bones; usually chondroblastic.
*Gnathic - jaw bones; usu. chondroblastic.


How to remember:
How to remember:
Line 726: Line 722:
*Secondary.
*Secondary.
*Telangiectatic.
*Telangiectatic.
=====Chondroblastic osteosarcoma=====
*Chondroid matrix present - may be prominent; osteoid may be a minor component.
*May be confused with [[chondrosarcoma]].
=====Fibroblastic osteosarcoma=====
*[[Undifferentiated pleomorphic sarcoma]]-like/[[MFH]]-like.
Images:
*[http://path.upmc.edu/cases/case44.html Fibroblastic osteosarcoma (upmc.edu)].
=====Telangiectatic osteosarcoma=====
*Extremely vascular.
=====Parosteal osteosarcoma=====
*Arise from surface of bone.<ref>{{Ref WHOSTAB|279}}</ref>
*Low grade.<ref name=pmid16896870>{{Cite journal  | last1 = Carrle | first1 = D. | last2 = Bielack | first2 = SS. | title = Current strategies of chemotherapy in osteosarcoma. | journal = Int Orthop | volume = 30 | issue = 6 | pages = 445-51 | month = Dec | year = 2006 | doi = 10.1007/s00264-006-0192-x | PMID = 16896870 | PMC = 3172747 | URL = http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3172747/?tool=pubmed}}</ref>
=====Small cell osteosarcoma=====
*May mimic (other) [[small round cell tumours]].
=====Secondary osteosarcoma=====
Arises in the context of something else - causes:
*[[Paget disease of the bone]] (~80% of secondary osteosarcomas)
*Radiation (~15% of secondary osteosarcomas)).<ref>URL: [http://www.rsna.org/REG/publications/rg/afip/privateM/1997/0017/0005/1205/6.htm http://www.rsna.org/REG/publications/rg/afip/privateM/1997/0017/0005/1205/6.htm]. Accessed on: 8 April 2011.</ref>
Images:
*[http://path.upmc.edu/cases/case598.html Secondary osteosarcoma - several images (upmc.edu)].


==Giant cell tumour of bone==
==Giant cell tumour of bone==
Michael
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