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Difference between revisions of "Vascular tumours"
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→Masson hemangioma: more, +images
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==Masson hemangioma== | ==Masson hemangioma== | ||
*[[AKA]] ''intravascular papillary endothelial hyperplasia''.<ref name=pmid15865098>{{cite journal |author=Korkolis DP, Papaevangelou M, Koulaxouzidis G, Zirganos N, Psichogiou H, Vassilopoulos PP |title=Intravascular papillary endothelial hyperplasia (Masson's hemangioma) presenting as a soft-tissue sarcoma |journal=Anticancer Res. |volume=25 |issue=2B |pages=1409–12 |year=2005 |pmid=15865098 |doi= |url=}}</ref> | |||
*[[AKA]] ''Masson tumor''.<ref>URL: [http://path.upmc.edu/cases/case544/dx.html http://path.upmc.edu/cases/case544/dx.html]. Accessed on: 25 January 2012.</ref> | |||
===General=== | ===General=== | ||
*Benign non-neoplastic lesion - a vessel that has thrombosed and recanalized. | *Benign non-neoplastic lesion - a vessel that has thrombosed and recanalized. | ||
*Histomorphologically may be confused with low-grade [[angiosarcoma]] or other soft tissue sarcomas.<ref name=pmid15865098/> | |||
*Histomorphologically may be confused with low-grade angiosarcoma or other soft tissue sarcomas.<ref name=pmid15865098/> | |||
===Microscopic=== | ===Microscopic=== | ||
Features: | Features: | ||
*Well-circumscribed - '''key (low power) feature'''. | *Well-circumscribed - '''key (low power) feature'''. | ||
*Abundant small vascular channels with benign endothelium. | *Abundant small vascular channels with benign endothelium. | ||
*+/-Papillary formation with a fibrotic core covered by benign endothelium.<ref>URL: [http://path.upmc.edu/cases/case544.html http://path.upmc.edu/cases/case544.html]. Accessed on: 25 January 2012.</ref> | |||
Notes: | Notes: | ||
*Looks like [[Kaposi sarcoma]] at high power. | *Looks like [[Kaposi sarcoma]] at high power. | ||
Images: | |||
*[http://path.upmc.edu/cases/case544.html Masson hemangioma - several images (upmc.edu)]. | |||
==Angiosarcoma== | ==Angiosarcoma== | ||