Intravascular papillary endothelial hyperplasia
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|Intravascular papillary endothelial hyperplasia|
|Diagnosis in short|
Intravascular papillary endothelial hyperplasia. H&E stain.
|Synonyms||Masson tumour, Masson hemangioma|
|LM||well-circumscribed lesion (low power) with abundant small vascular channels with benign endothelium +/-papillary formations with a fibrotic core covered by benign endothelium|
|LM DDx||Kaposi sarcoma, other hemangiomas|
|Site||blood vessel (artery)|
It is also known as a Masson tumour.
- Benign non-neoplastic lesion - a vessel that has thrombosed and recanalized.
- Histomorphologically may be confused with low-grade angiosarcoma or other soft tissue sarcomas.
- Well-circumscribed - key (low power) feature.
- Abundant small vascular channels with benign endothelium.
- +/-Papillary formation with a fibrotic core covered by benign endothelium.
- Korkolis DP, Papaevangelou M, Koulaxouzidis G, Zirganos N, Psichogiou H, Vassilopoulos PP (2005). "Intravascular papillary endothelial hyperplasia (Masson's hemangioma) presenting as a soft-tissue sarcoma". Anticancer Res. 25 (2B): 1409–12. PMID 15865098.
- URL: http://path.upmc.edu/cases/case544/dx.html. Accessed on: 25 January 2012.
- URL: http://path.upmc.edu/cases/case544.html. Accessed on: 25 January 2012.