tumor vascularity
The degree of blood vessel development within and around a brain tumor, affecting surgical approach and bleeding risk.
Full Definition
Tumor vascularity refers to the extent and characteristics of blood vessels within and surrounding a brain tumor. Highly vascular tumors, such as meningiomas and certain metastases, pose increased surgical bleeding risk and may require preoperative embolization to reduce vascularity. Tumor vascularity can be assessed through imaging studies including contrast-enhanced MRI, CT angiography, and cerebral angiography. Understanding vascularity patterns helps surgeons plan the optimal approach, anticipate potential complications, and determine the need for specialized techniques or preoperative interventions.
Usage
Usage note: Distinct from contrast enhancement, which may not always correlate directly with vascularity.
In Context
- "Preoperative angiography revealed significant tumor vascularity requiring embolization before resection." — Interventional radiology report
- "The meningioma demonstrated typical high vascularity with prominent feeding vessels." — Imaging interpretation