Name: Alioramus â­(â¬Different Branchâ­)â¬. Phonetic: Ah-lee-oh-ray-mus. Named By: Sergei Kurzanovâ­ â¬-â­ â¬1976. Classification: Chordata,â­ â¬Reptilia,â­ â¬Dinosauria,â­ â¬Saurischia,â­ â¬Theropoda,â­ â¬Tyrannosauroidea,â­ â¬Tyrannosauridae,â­ â¬Tyrannosaurinae. Species: A.â­ â¬remotusâ­ (â¬typeâ­)â¬,â­ â¬A.â­ â¬altai.
Definition. A gastrointestinal fistula is an abnormal opening in the stomach or intestines that allows the contents to leak. 1  Leaks that go through to a part of the intestines are called entero-enteral fistulas.2  Leaks that go through to the skin are called enterocutaneous fistulas.auses. Most gastrointestinal fistulas occur after surgery. Other causes include: 1  Blockage in the gastrointestinal tract. 2  Infection. 3  Inflammatory bowel disease (most often Crohn's disease).
Occasionally, bacteria, fecal material or foreign matter can clog an anal gland and tunnel into the tissue around the anus or rectum, where it may then collect in a cavity called an abscess. An anal fistula (also commonly called fistula-in-ano) is frequently the result of a previous or current anal abscess. This occurs in up to 50% of patients with abscesses. Normal anatomy includes small glands just inside the anus. The fistula is the tunnel that forms under the skin and connects the clogged infected glands to an abscess. A fistula can be present with or without an abscess and may connect just to the skin of the buttocks near the anal opening.