[Independent intestinal duplication].

Some types of intestinal duplication are an infrequent clinical condition in the gastroenterology tract that do not meet all classic requisites for their definition. We present a case of independent intestinal duplication from small intestine that starts with acute abdomen; cystic, perforated and separated tumor from wall of normal intestine was founded during surgery. It was totally resected with preservation of normal intestine adjacent, because it was an independent vascular supply. We review a new vascular classification of intestinal duplication and their importance in surgical treatment of this matter.