Difference between revisions of "Chondro-osseous tumours"

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Chondro-osseous tumours (view source)

Revision as of 23:20, 31 March 2014

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→‎Diffuse tenosynovial giant-cell tumour: split out
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*[[AKA]] ''tenosynovial giant-cell tumour, diffuse type''.
*[[AKA]] ''tenosynovial giant-cell tumour, diffuse type''.
*Previously known as ''pigmented villonodular synovitis'' (PVNS).<ref>{{Ref PBoD8|1247}}</ref>  
*Previously known as ''pigmented villonodular synovitis'' (PVNS).<ref>{{Ref PBoD8|1247}}</ref>  
 
{{Main|Diffuse tenosynovial giant-cell tumour}}
===General===
*Course: benign.
**Occasionally malignant.<ref name=pmid22827766>{{Cite journal  | last1 = Kondo | first1 = R. | last2 = Akiba | first2 = J. | last3 = Hiraoka | first3 = K. | last4 = Hisaoka | first4 = M. | last5 = Hashimoto | first5 = H. | last6 = Kage | first6 = M. | last7 = Yano | first7 = H. | title = Malignant diffuse-type tenosynovial giant cell tumor of the buttock. | journal = Pathol Int | volume = 62 | issue = 8 | pages = 559-64 | month = Aug | year = 2012 | doi = 10.1111/j.1440-1827.2012.02838.x | PMID = 22827766 }}</ref><ref name=pmid18301053>{{Cite journal  | last1 = Li | first1 = CF. | last2 = Wang | first2 = JW. | last3 = Huang | first3 = WW. | last4 = Hou | first4 = CC. | last5 = Chou | first5 = SC. | last6 = Eng | first6 = HL. | last7 = Lin | first7 = CN. | last8 = Yu | first8 = SC. | last9 = Huang | first9 = HY. | title = Malignant diffuse-type tenosynovial giant cell tumors: a series of 7 cases comparing with 24 benign lesions with review of the literature. | journal = Am J Surg Pathol | volume = 32 | issue = 4 | pages = 587-99 | month = Apr | year = 2008 | doi = 10.1097/PAS.0b013e318158428f | PMID = 18301053 }}</ref><ref name=pmid10757395>{{Cite journal  | last1 = Somerhausen | first1 = NS. | last2 = Fletcher | first2 = CD. | title = Diffuse-type giant cell tumor: clinicopathologic and immunohistochemical analysis of 50 cases with extraarticular disease. | journal = Am J Surg Pathol | volume = 24 | issue = 4 | pages = 479-92 | month = Apr | year = 2000 | doi =  | PMID = 10757395 }}</ref>
*''[[Giant cell tumour of the tendon sheath]]'' is considered to be the soft-tissue counterpart of PVNS.<ref>URL: [http://emedicine.medscape.com/article/1253223-overview http://emedicine.medscape.com/article/1253223-overview]. Accessed on: 6 January 2011.</ref>
 
===Gross===
*Typically knee or hip.<ref name=pmid10524485>{{Cite journal  | last1 = Frassica | first1 = FJ. | last2 = Bhimani | first2 = MA. | last3 = McCarthy | first3 = EF. | last4 = Wenz | first4 = J. | title = Pigmented villonodular synovitis of the hip and knee. | journal = Am Fam Physician | volume = 60 | issue = 5 | pages = 1404-10; discussion 1415 | month = Oct | year = 1999 | doi =  | PMID = 10524485 | URL = http://www.aafp.org/afp/1999/1001/p1404.html }}</ref>
*May be extra-articular.<ref name=pmid10757395/>
 
===Microscopic===
Features:<ref>URL: [http://www.wheelessonline.com/ortho/pigmented_villonodular_synovitis http://www.wheelessonline.com/ortho/pigmented_villonodular_synovitis].</ref>
*Subsynovial nodules composed of cells with:
**Abundant cytoplasm.
**Pale nuclei.
*Multinucleated giant cells.
*Hemosiderin-laden macrophages.
*Foam cells.
 
DDx - general for the site:<ref name=pmid17031677>{{Cite journal  | last1 = Krenn | first1 = V. | last2 = Morawietz | first2 = L. | last3 = König | first3 = A. | last4 = Haeupl | first4 = T. | title = [Differential diagnosis of chronic synovitis]. | journal = Pathologe | volume = 27 | issue = 6 | pages = 402-8 | month = Nov | year = 2006 | doi = 10.1007/s00292-006-0866-6 | PMID = 17031677 }}</ref>
*[[Synovial chondromatosis]].
*[[Gout]].
*[[Pseudogout]].
*[[Storage disorders]].
*[[Granuloma|Granulomatous inflammation]].
*Degenerative changes ([[osteoarthritis]]).
*[[Rheumatic joint disease|Rheumatic disease]].
 
====Images====
<gallery>
Image:Pigmented_villonodular_synovitis_low_mag.jpg | PVNS - low mag. (WC)
Image:Pigmented_villonodular_synovitis_high_mag.jpg | PVNS - high mag. (WC)
</gallery>
www:
*[http://path.upmc.edu/cases/case251/micro.html PVNS - several images (upmc.edu)].
*[http://www.webpathology.com/image.asp?case=357&n=2 PVNS (webpathology.com)].
 
===Molecular===
*Clonal.<ref name=pmid22849738>{{Cite journal  | last1 = Lucas | first1 = DR. | title = Tenosynovial giant cell tumor: case report and review. | journal = Arch Pathol Lab Med | volume = 136 | issue = 8 | pages = 901-6 | month = Aug | year = 2012 | doi = 10.5858/arpa.2012-0165-CR | PMID = 22849738 }}</ref>
 
===Sign out===
<pre>
RIGHT FEMORAL HEAD AND JOINT CAPSULE, EXCISION:
- DEGENERATIVE JOINT DISEASE.
- DIFFUSE TENOSYNOVIAL GIANT-CELL TUMOUR (PIGMENTED VILLONODULAR SYNOVITIS).
</pre>
 
====Micro====
The soft tissue sections show nodules with abundant hemosiderin-laden macrophages and multinucleated giant cells. Nuclear atypia is not identified. Mitotic activity is not apparent.


==Giant cell tumour of tendon sheath==
==Giant cell tumour of tendon sheath==
Michael
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