[Colonic angiodysplasia. Rare cause of low digestive hemorrhage in young patients].

We report the following observation of a diffuse kind of colic angiodysplasia in a young subject. Usually to be find in old subjects and regarded as been degenerative origine, angiodysplasiae have been reported in young subjects and we are led to ponder over their nature. The contribution of diagnostic and therapeutic means and their respected place have been specified. In particular the significance of vascular radiology and the angiographic signs of this arterioveinous malformation have been developed.