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Line 523: |
| :'''''Not''' to be confused with [[microglandular hyperplasia]]''. | | :'''''Not''' to be confused with [[microglandular hyperplasia]]''. |
| *Abbreviated ''MGA''. | | *Abbreviated ''MGA''. |
| ===General===
| | {{Main|Microglandular adenosis}} |
| *Controversial thingy.
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| Management:
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| *Excision.
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| ===Microscopic===
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| Features:<ref name=uscap_mga>URL: [http://www.uscap.org/site~/iap2006/slides08-4v.htm http://www.uscap.org/site~/iap2006/slides08-4v.htm]. Accessed on: 18 May 2011.</ref>
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| *Round glands lined by a single layer of cells.
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| *May extend into fat.
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| *Lack of desmoplastic stroma.
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| DDx:
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| *[[Tubular carcinoma]] - has apical snouts, desmoplasia among other things; see page by ''Collins''.<ref name=uscap_mga>URL: [http://www.uscap.org/site~/iap2006/slides08-4v.htm http://www.uscap.org/site~/iap2006/slides08-4v.htm]. Accessed on: 18 May 2011.</ref>
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| *[[Sclerosing adenosis]].
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| Images:
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| *[http://www.surgicalpathologyatlas.com/glfusion/mediagallery/media.php?f=1&s=20080802171452955&i=0&p=0 Microglandular adenosis (surgical pathologyatlas.com)].
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| *[http://webpathology.com/image.asp?n=1&Case=282 MGA - low mag. (webpathology.com)].
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| *[http://webpathology.com/image.asp?n=2&Case=282 MGA - high mag. (webpathology.com)].
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| *[http://www.breastpathology.info/Images/Benign/SclerAdenosis/mga1c_400.jpg MGA (breastpathology.info)].
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| *[http://www.breastpathology.info/sub-pages-iotw/2010/2.html MGA - several images (breastpathology.info)].
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| ===IHC===
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| Features:<ref name=pmid8821958>{{Cite journal | last1 = Joshi | first1 = MG. | last2 = Lee | first2 = AK. | last3 = Pedersen | first3 = CA. | last4 = Schnitt | first4 = S. | last5 = Camus | first5 = MG. | last6 = Hughes | first6 = KS. | title = The role of immunocytochemical markers in the differential diagnosis of proliferative and neoplastic lesions of the breast. | journal = Mod Pathol | volume = 9 | issue = 1 | pages = 57-62 | month = Jan | year = 1996 | doi = | PMID = 8821958 }}</ref>
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| *S100 +ve.
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| *34BE12 +ve -- focal!
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| Others:
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| *EMA -ve.
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| **Tubular carcinoma usu. +ve.
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| *[[GCDFP-15]] -ve.<ref>{{Ref APBR|296 Q20}}</ref>
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| *Ki-67 <3%.
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| ==Adenomyoepithelioma== | | ==Adenomyoepithelioma== |