Difference between revisions of "Ovarian tumours"

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Ovarian tumours (view source)

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==Ovarian fibroma==
==Ovarian fibroma==
===General===
{{Main|Ovarian fibroma}}
*May be a part of:
*#[[Meigs syndrome]] (mnemonic ''FAR'': fibroma, [[ascites]], right pleural [[effusion]]).
*#[[Nevoid basal cell carcinoma syndrome]] (NBCCS), AKA ''Gorlin syndrome''.<ref name=Ref_PBoD1103>{{Ref PBoD |1103}}</ref>
*#*In NBCCS classically - calcified and bilateral.<ref name=pmid6385289>{{Cite journal  | last1 = Tytle | first1 = T. | last2 = Rosin | first2 = D. | title = Bilateral calcified ovarian fibromas. | journal = South Med J | volume = 77 | issue = 9 | pages = 1178-80 | month = Sep | year = 1984 | doi =  | PMID = 6385289 }}</ref>
*Very rarely transform to [[adult fibrosarcoma|fibrosarcoma]] <1%.<ref>URL: [http://brighamrad.harvard.edu/Cases/bwh/hcache/353/full.html http://brighamrad.harvard.edu/Cases/bwh/hcache/353/full.html]. Accessed on: 4 October 2011.</ref>
 
===Gross===
Features:
*Solid white mass, usu. well-circumscribed.<ref name=Ref_AoGP398>{{Ref AoGP|398}}</ref>
 
Note:
*Thecoma = yellow solid mass.<ref name=Ref_AoGP398>{{Ref AoGP|398}}</ref>
 
====Images====
www:
*[http://www.flickr.com/photos/78147607@N00/2871451742 Ovarian fibroma (flickr.com/euthman)].
*[http://www.wikidoc.org/index.php/File:Ovarian_Fibroma.jpg Ovarian fibroma (wikidoc.org)].
 
===Microscopic===
Features:<ref>URL: [http://www.pathologyoutlines.com/ovarytumor.html#fibroma http://www.pathologyoutlines.com/ovarytumor.html#fibroma]. Accessed on: 7 May 2012.</ref><ref name=pmid16810055/>
*[[Spindle cell]]s with central nucleus and no nuclear atypia.
*Patternless pattern ([[AKA]] storiform pattern) - not fascicular, not herring bone.
*Stainable lipid - minimal or none.<ref name=pmid16810055/>
 
Notes:
*May be cellular.
*Mitotic activity minimal.<ref name=pmid20979607>{{Cite journal  | last1 = Huang | first1 = L. | last2 = Liao | first2 = LM. | last3 = Wang | first3 = HY. | last4 = Zheng | first4 = M. | title = Clinicopathologic characteristics and prognostic factors of ovarian fibrosarcoma: the results of a multi-center retrospective study. | journal = BMC Cancer | volume = 10 | issue =  | pages = 585 | month =  | year = 2010 | doi = 10.1186/1471-2407-10-585 | PMID = 20979607 }}</ref>
 
DDx:
*[[Thecoma]] - lipid.
*[[Leiomyoma]] - fascicular architecture, rare in the ovary.
*[[Fibrosarcoma]] - nuclear atypia, classically herring bone pattern, very rare.
*Metastatic [[metaplastic carcinoma]] - nuclear atypia, rare.
*[[Endometriosis]] with extensive fibrosis.
 
====Images====
<gallery>
Image:Ovarian_fibroma_-_intermed_mag.jpg | Ovarian fibroma - intermed mag. (WC)
Image:Ovarian_fibroma_-_high_mag.jpg | Ovarian fibroma - high mag. (WC)
</gallery>
 
===IHC===
*Inhibin -ve (~75%).<ref name=pmid16810055/>
 
===Sign out===
<pre>
OVARIAN MASS ("FIBROMA"), LEFT, EXCISION:
- FIBROMA.
- NEGATIVE FOR MALIGNANCY.
</pre>
 
====Micro====
The sections show spindle cells in a patternless pattern.  There is no appreciable nuclear atypia. No mitotic activity is apparent. No necrosis is identified. No calcifications are seen. A small amount of benign ovarian parenchyma is present at the edge of the lesion.


==Thecoma==
==Thecoma==
Michael
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