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| *Abbreviated ''APA''. | | *Abbreviated ''APA''. |
| *[[AKA]] ''atypical polypoid adenomyoma''. | | *[[AKA]] ''atypical polypoid adenomyoma''. |
| ===General===
| | {{Main|Atypical polypoid adenomyoma of the uterus}} |
| *Very rare.<ref name=pmid21684185>{{Cite journal | last1 = Terada | first1 = T. | title = Atypical polypoid adenomyoma of the uterus: an immunohistochemical study on 5 cases. | journal = Ann Diagn Pathol | volume = 15 | issue = 5 | pages = 338-41 | month = Oct | year = 2011 | doi = 10.1016/j.anndiagpath.2011.03.008 | PMID = 21684185 }}</ref>
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| *Benign.<ref name=pmid17050990/>
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| *Reproductive age women.
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| ===Gross===
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| *Lower uterine segment.
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| ===Microscopic===
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| Features:<ref name=pmid17050990>{{Cite journal | last1 = Jakus | first1 = S. | last2 = Edmonds | first2 = P. | last3 = Dunton | first3 = C. | last4 = Holland | first4 = G. | title = Atypical polypoid adenomyoma mimicking cervical adenocarcinoma. | journal = J Low Genit Tract Dis | volume = 6 | issue = 1 | pages = 33-8 | month = Jan | year = 2002 | doi = | PMID = 17050990 }}</ref>
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| *Glands with irregular (non-ovoid) shapes.
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| *Benign smooth muscle around the glands - '''key feature'''.
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| *Morular squamous metaplasia - balls of squamous cells - very common.
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| *Nuclear atypia (mild).
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| DDx:
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| *[[Endometrioid endometrial carcinoma]].
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| *[[Endometrium with squamous morules]] - more common.
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| *Endocervical adenocarcinoma.
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| ====Images====
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| <gallery>
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| Image:Atypical_polypoid_adenomyoma_-_intermed_mag.jpg | APA - intermed. mag. (WC)
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| Image:Atypical_polypoid_adenomyoma_-_high_mag.jpg | APA - high mag. (WC)
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| Image:Atypical_polypoid_adenomyoma_-_very_high_mag.jpg | APA - very high mag. (WC)
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| </gallery>
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| www:
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| *[http://www.pathologypics.com/PictView.aspx?ID=1220 APA (pathologypics.com)].
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| ===IHC===
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| Features (glandular component):<ref name=pmid21684185/>
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| *AE1/AE3 +ve.
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| *CK7 +ve.
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| *ER +ve.
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| *PR +ve.
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| Significant negative (glandular component):<ref name=pmid21684185/>
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| *[[CK20]] -ve.
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| *CEA -ve.
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| ===Sign out===
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| <pre>
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| ENDOMETRIUM, CURETTAGE:
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| - ATYPICAL POLYPOID ADENOMYOMA.
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| COMMENT:
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| Atypical polypoid adenomyomas are considered to be benign lesions; however,
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| they may persist or recur in up to half of patients.
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| </pre>
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|
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| =See also= | | =See also= |