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**[http://commons.wikimedia.org/wiki/File:Papillary_hidradenoma_-_very_high_mag.jpg Papillary hidradenoma - very high mag. (WC)]. | **[http://commons.wikimedia.org/wiki/File:Papillary_hidradenoma_-_very_high_mag.jpg Papillary hidradenoma - very high mag. (WC)]. | ||
== | ==Lymphocytic mastitis== | ||
===General=== | ===General=== | ||
*[[ | *If the individual has [[diabetes mellitus]] (DM) it is called ''diabetic mastopathy''.<ref name=pmid12640102>{{Cite journal | last1 = Valdez | first1 = R. | last2 = Thorson | first2 = J. | last3 = Finn | first3 = WG. | last4 = Schnitzer | first4 = B. | last5 = Kleer | first5 = CG. | title = Lymphocytic mastitis and diabetic mastopathy: a molecular, immunophenotypic, and clinicopathologic evaluation of 11 cases. | journal = Mod Pathol | volume = 16 | issue = 3 | pages = 223-8 | month = Mar | year = 2003 | doi = 10.1097/01.MP.0000056627.21128.74 | PMID = 12640102 }}</ref> | ||
*Rare. | *Rare. | ||
===Microscopic=== | ===Microscopic=== | ||
Features:<ref>URL: [http://www.breastpathology.info/Case_of_the_month/2007/COTM_0707%20discussion.html http://www.breastpathology.info/Case_of_the_month/2007/COTM_0707%20discussion.html]. Accessed on: 28 November 2010.</ref> | Features:<ref>URL: [http://www.breastpathology.info/Case_of_the_month/2007/COTM_0707%20discussion.html http://www.breastpathology.info/Case_of_the_month/2007/COTM_0707%20discussion.html]. Accessed on: 28 November 2010.</ref> | ||
* Lymphocytic infiltrates - '''key feature''': | |||
* Lymphocytic infiltrates: | |||
** Lobules. | ** Lobules. | ||
** Perivascular. | ** Perivascular. | ||
* Enlarged stromal fibroblasts. | * Enlarged stromal fibroblasts. | ||
* Stromal collagen with keloid-like changes. | |||
DDx: | DDx: | ||
*Diabetic mastopathy - if individual has diabetes. | |||
*Primary [[lymphoma]] of the breast. | *Primary [[lymphoma]] of the breast. | ||
Images: | Images: |
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