Embolization of nonliver visceral tumors.

Catheter-directed embolization of visceral tumors, with the exception of the liver, has received limited attention in the literature. The visceral arterial anatomy can be complex and its understanding is critical for procedure planning and limiting complications. Embolization of splenic neoplasms is exceedingly rare. Preoperative embolization for adrenal, renal, and gut tumors plays an important role in select patients. Embolization has been used successfully in the treatment of pancreatic insulinomas and in limited cases of unresectable pancreatic adenocarcinomas. Embolization of bleeding visceral tumors can be accomplished with a high likelihood of success.