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| ==Angiomyofibroblastoma== | | ==Angiomyofibroblastoma== |
| ===General===
| | {{Main|Angiofibroblastoma}} |
| *Uncommon.
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| Clinical DDx:
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| *[[Bartholin cyst]].
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| ===Microscopic===
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| Features:<ref name=pmid1314521>{{Cite journal | last1 = Fletcher | first1 = CD. | last2 = Tsang | first2 = WY. | last3 = Fisher | first3 = C. | last4 = Lee | first4 = KC. | last5 = Chan | first5 = JK. | title = Angiomyofibroblastoma of the vulva. A benign neoplasm distinct from aggressive angiomyxoma. | journal = Am J Surg Pathol | volume = 16 | issue = 4 | pages = 373-82 | month = Apr | year = 1992 | doi = | PMID = 1314521 }}</ref>
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| *Hypercellular zones and hypocellular edematous zones.
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| *Small blood vessels (~20 micrometers) - no large blood vessels - '''key feature'''.
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| *[[Myxoid stroma]] - '''key feature'''.
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| *Small stellate cell/spindle cells without significant nuclear atypia.
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| DDx:
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| *[[Aggressive angiomyxoma]] - less cellular, large blood vessels.
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| Images:
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| *[http://www.webpathology.com/image.asp?case=544&n=4 Angiomyofibroblastoma (webpathology.com)]
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| *[http://www.webpathology.com/image.asp?n=5&Case=544 Angiomyofibroblastoma - high mag. (webpathology.com)].
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| ==Extrarenal malignant rhabdoid tumour== | | ==Extrarenal malignant rhabdoid tumour== |