[Lipomeningocele].

In a revision of 473 spina Bifida cystica, 19 lumbosacral lipomas during the last 13 years is presented. It corresponds to a 4,01% of total cases. The results are commented pointing out the embryology, symptomatology and diagnostic. The treatment is surgical before symptomatology appear. It is very important early surgery for the risk is very low if we compare it with the serious neurologic symptoms that can be established. Tumor must be exirpated as much as possible, liberalizing the medullar adherences that avoid its free ascend. All surgical cases presented an intramedullar communication and compresion. Only three of them, under 3 months of life, are not operated. Postsurgery evolution is satisfactory.