what is anastomosis
An anastomosis (plural anastomoses, from Greek á¼Î½Î±ÏÏÏÎ¼ÏÏÎ¹Ï, communicating opening) is the reconnection of two streams that previously branched out, such as blood vessels or leaf veins.The term is used in medicine, biology, mycology, geology, geography and architecture.athological anastomosis results from trauma or disease and may involve veins, arteries, or intestines. These are usually referred to as fistulas. In the cases of veins or arteries, traumatic fistulas usually occur between artery and vein.