Angioinvasion
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Angioinvasion is spread of tumour into a blood vessel.[1]
It is typically lumped with lymphatic invasion into lymphovascular invasion.
General
The distinction between lymphatic invasion and lymphovascular invasion is usually not important. One important exception is the thyroid gland.[2]
Microscopic
Features:
- Tumour within a vascular space.
- Vascular space: endothelial cells, red blood cells.
Note:
- One strict definitions requires thrombus adherent to tumour.[2]
DDx:
- Lymphovascular invasion - no red blood cells.
- Carryover of tumour - not attached to wall, no thrombus.
See also
References
- ↑ URL: https://www.tititudorancea.net/z/angioinvasion.htm. Accessed on: 24 November 2016.
- ↑ 2.0 2.1 Mete, O.; Asa, SL. (Dec 2011). "Pathological definition and clinical significance of vascular invasion in thyroid carcinomas of follicular epithelial derivation.". Mod Pathol 24 (12): 1545-52. doi:10.1038/modpathol.2011.119. PMID 21804527.