Difference between revisions of "Intravascular papillary endothelial hyperplasia"

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{{ Infobox diagnosis
| Name      = {{PAGENAME}}
| Image      = Intravascular papillary endothelial hyperplasia -- very low mag.jpg
| Width      =
| Caption    = Intravascular papillary endothelial hyperplasia. [[H&E stain]].
| Synonyms  = Masson tumour, Masson hemangioma
| Micro      = well-circumscribed lesion (low power) with abundant small vascular channels with benign endothelium +/-papillary formations with a fibrotic core covered by benign endothelium
| Subtypes  =
| LMDDx      = [[Kaposi sarcoma]], other [[hemangioma]]s
| Stains    =
| IHC        =
| EM        =
| Molecular  =
| IF        =
| Gross      =
| Grossing  =
| Site      = blood vessel (artery)
| Assdx      =
| Syndromes  =
| Clinicalhx =
| Signs      =
| Symptoms  =
| Prevalence = uncommon
| Bloodwork  =
| Rads      =
| Endoscopy  =
| Prognosis  = benign
| Other      =
| ClinDDx    =
| Tx        =
}}
'''Intravascular papillary endothelial hyperplasia''', also '''Masson's [[hemangioma]]''',<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> is a benign [[vascular lesion]].
'''Intravascular papillary endothelial hyperplasia''', also '''Masson's [[hemangioma]]''',<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> is a benign [[vascular lesion]].


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*+/-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>
*+/-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:
DDx:
*Looks like [[Kaposi sarcoma]] at high power.
*[[Kaposi sarcoma]] - esp. at high magnification.
*Other [[vascular tumours]].


Images:
===Images===
<gallery>
Image: Intravascular papillary endothelial hyperplasia -- very low mag.jpg | IPEH - very low mag.
Image: Intravascular papillary endothelial hyperplasia -- low mag.jpg | IPEH - low mag.
Image: Intravascular papillary endothelial hyperplasia -- intermed mag.jpg | IPEH - intermed. mag.
Image: Intravascular papillary endothelial hyperplasia -- high mag.jpg | IPEH - high mag.
Image: Intravascular papillary endothelial hyperplasia - alt -- high mag.jpg | IPEH - very high mag.
</gallery>
www:
*[http://path.upmc.edu/cases/case544.html Masson hemangioma - several images (upmc.edu)].
*[http://path.upmc.edu/cases/case544.html Masson hemangioma - several images (upmc.edu)].


Latest revision as of 05:32, 21 July 2014

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)
Prevalence uncommon
Prognosis benign

Intravascular papillary endothelial hyperplasia, also Masson's hemangioma,[1] is a benign vascular lesion.

It is also known as a Masson tumour.[2]

General

  • Benign non-neoplastic lesion - a vessel that has thrombosed and recanalized.
  • Histomorphologically may be confused with low-grade angiosarcoma or other soft tissue sarcomas.[1]

Microscopic

Features:

  • Well-circumscribed - key (low power) feature.
  • Abundant small vascular channels with benign endothelium.
  • +/-Papillary formation with a fibrotic core covered by benign endothelium.[3]

DDx:

Images

  • IPEH - very low mag.

  • IPEH - low mag.

  • IPEH - intermed. mag.

  • IPEH - high mag.

  • IPEH - very high mag.

www:

See also

References

  1. ↑ 1.0 1.1 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.
  2. ↑ URL: http://path.upmc.edu/cases/case544/dx.html. Accessed on: 25 January 2012.
  3. ↑ URL: http://path.upmc.edu/cases/case544.html. Accessed on: 25 January 2012.
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