Difference between revisions of "Invasive breast cancer"

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**Abnormal architecture - including cribriform, solid, micropapillary, papillary.
**Abnormal architecture - including cribriform, solid, micropapillary, papillary.


Photos:
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<gallery>
Image:Breast Carcinoma Papillary Intracystic SolidVariant LP CTR.jpg|Breast - Papillary Intracystic Carcinoma, Solid Variant - low power (SKB)
Image:Breast Carcinoma Papillary Intracystic SolidVariant LP CTR.jpg|Breast - Papillary Intracystic Carcinoma, Solid Variant - low power (SKB)
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Image:Breast EncystedPapillaryCarcinoma InfiltratingDuctalCarcinoma PA.JPG|thumb|Breast - Intracystic papillary adenocarcinoma with associated invasive ductal carcinoma (SKB)
Image:Breast EncystedPapillaryCarcinoma InfiltratingDuctalCarcinoma PA.JPG|thumb|Breast - Intracystic papillary adenocarcinoma with associated invasive ductal carcinoma (SKB)
</gallery>
</gallery>
WebPathology<http://www.webpathology.com/images/noimage.gif>
WebPathology<http://www.webpathology.com/images/noimage.gif>
WebPathology<http://www.webpathology.com/images/noimage.gif>


DDx<ref>{{Cite journal  | last1 = Collins | first1 = LC. | last2 = Schnitt | first2 = SJ. | title = Papillary lesions of the breast: selected diagnostic and management issues. | journal = Histopathology | volume = 52 | issue = 1 | pages = 20-9 | month = Jan | year = 2008 | doi = 10.1111/j.1365-2559.2007.02898.x | PMID = 18171414 }}
DDx<ref>{{Cite journal  | last1 = Collins | first1 = LC. | last2 = Schnitt | first2 = SJ. | title = Papillary lesions of the breast: selected diagnostic and management issues. | journal = Histopathology | volume = 52 | issue = 1 | pages = 20-9 | month = Jan | year = 2008 | doi = 10.1111/j.1365-2559.2007.02898.x | PMID = 18171414 }}
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**Is there a single cell or dual cell population in the lesion?
**Is there a single cell or dual cell population in the lesion?
***ER staining will be heterologous in a benign lesion.
***ER staining will be heterologous in a benign lesion.
***If myoepithelial markers are negative within the lesion then malignancy is favoured.   
***Myoepithelial markers (calponin/p63/SMA +ve)s hould be positive in a benign lesion.   
*[[Papillary ductal carcinoma in situ]]
*[[Papillary ductal carcinoma in situ]]
**Papillary DCIS shows myoepithelial cells (calponin/p63/SMA +ve) at the periphery of the involved spaces
**Papillary DCIS shows myoepithelial cells (calponin/p63/SMA +ve) at the periphery of the involved spaces
**But papillary DCIS should be negative for myoepithelial cells within the focus of DCIS
**Papillary intracystic carcinoma does not show myoepithelial cells at the periphery of the involved spaces
**Papillary intracystic carcinoma does not show myoepithelial cells at the periphery of the involved spaces
*Invasive carcinoma arising in association with papillary intracystic carcinoma
*Invasive carcinoma arising in association with papillary intracystic carcinoma
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