Complications of Embolization Treatment for Problem Cavernous Hemangiomas

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Abstract
Radiologists trained in selective angiography can now deliver sclerosing or occluding materials to the arterial supply of vascular tumors. Such skills require special training and there are limitations to the use of these materials. Specific obliteration can be carried out if this technique is quality controlled. Materials being used for embolization are continually being studied and are changing as new materials are developed. Radiologists can assist surgeons in managing some of these very difficult problems. A large series of patients with various vascular lesions treated at the Oregon Health Sciences University was reviewed. The complications of embolization used for cavernous hemangiomas have tempered our enthusiasm for it as an adjunct form of therapy. We do feel that this method of treatment remains useful in selected cases. The occlusion achieved caused a decrease in both symptoms and size of lesions treated. The decrease in size excluded the need for surgery in 3 cases, aided resection in 1, but caused significant complicating slough in 1. Five cases are presented to demonstrate problems of tissue necrosis encountered.

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