Gelatin sponge in therapeutic neuroradiology: a subject review.

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Abstract
Gelatin sponge (Gelfoam) is used extensively in transcatheter vascular occlusions in humans. Its main disadvantage is its biodegradable characteristics, in the present era of multiple and various embolic agents, the use of Gelfoam in therapeutic transvascular embolization is reevaluated. Its use as microparticles to obtain occlusion at the precapillary or capillary level in neoplastic conditions, or as a temporary block to protect normal territory and its use in the control of hemorrhage are discussed.