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| ==Mucinous cystadenoma of the ovary== | | ==Mucinous cystadenoma of the ovary== |
| *[[AKA]] ''ovarian mucinous cystadenoma''. | | *[[AKA]] ''ovarian mucinous cystadenoma''. |
| ===General===
| | {{Main|Mucinous cystadenoma of the ovary}} |
| *Common.<ref>{{Cite journal | last1 = Pongsuvareeyakul | first1 = T. | last2 = Khunamornpong | first2 = S. | last3 = Settakorn | first3 = J. | last4 = Sukpan | first4 = K. | last5 = Suprasert | first5 = P. | last6 = Siriaunkgul | first6 = S. | title = Accuracy of frozen-section diagnosis of ovarian mucinous tumors. | journal = Int J Gynecol Cancer | volume = 22 | issue = 3 | pages = 400-6 | month = Mar | year = 2012 | doi = 10.1097/IGC.0b013e31823dc328 | PMID = 22246404 }}</ref>
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| *Benign.
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| ===Gross===
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| *Usually multiloculated.
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| *May be very large large.<ref name=pmid22283565>{{Cite journal | last1 = Leys | first1 = CM. | last2 = Gasior | first2 = AC. | last3 = Hornberger | first3 = LL. | last4 = St Peter | first4 = SD. | title = Laparoscopic resection of massive ovarian mucinous cystadenoma. | journal = J Laparoendosc Adv Surg Tech A | volume = 22 | issue = 3 | pages = 307-10 | month = Apr | year = 2012 | doi = 10.1089/lap.2011.0435 | PMID = 22283565 }}</ref>
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| *No solid areas.
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| ===Microscopic===
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| Features:
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| *Cysts lined by a simple mucinous epithelium.
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| *No cytologic atypia.
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| DDx:
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| *[[Seromucinous borderline tumour of the ovary]].
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| *[[Mucinous borderline tumour of the ovary]].
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| ==Mucinous borderline tumour of the ovary== | | ==Mucinous borderline tumour of the ovary== |