Pre-operative embolization is commonly performed for highly vascular tumors, such as meningiomas or renal cell carcinomas, primarily to achieve which of the following objectives?

Explanation

The primary goal of pre-operative embolization for highly vascular tumors (e.g., meningiomas, renal cell carcinomas, paragangliomas) is to devascularize the tumor. This significantly reduces intraoperative blood loss during surgical resection, making the surgery safer and often shorter. While some tumor shrinkage might occur (A), it is generally not the main objective. Embolization is not typically used to facilitate chemotherapy delivery in this context (B), and it does not prevent tumor metastasis (D).