[Lipoma of the corpus callosum. Report of a case associated with callosum agenesia].

A case of callosal lipoma with radiologic, angiographic and CT comprovation is discussed under actual knowledge of metabolic and clinical aspect of lipomas. The authors also make considerations about surroundings and genetic factors which would play a role acting especifically with chemical biotrophism on developing cells, affecting the genesis of corpus callosum and altering the functional structure of cells affected.