Karen Gormley

       Vomiting +/- blood Diarrhea +/- blood Anorexia Alternative to contrast studies Abnormality on radiograph Neoplasia suspected FNA

     Esophagus Stomach Small Intestine Ileocecocolic junction Colon

 Usually done with endoscopy

  Strictures Masses

     Best if no air Empty = “wagon wheel” Dogs 3-5 mm Cats ~2 mm Layers  Mucosal surface (hyper)     Mucosa (hypo) Submucosa (hyper) Muscularis propria (hypo) Subserosa/serosa (hyper)

     Foreign body Ulcers Neoplasia Inflammation Mineralization

    Wall thickness   2-4 mm dog 2-3.2 mm cat Wall layering      Lumen (hyper) Mucosa (hypo) * Submucosa (hyper) Muscularis (hypo) Serosa (hyper) Motility   4-5 contractions/min duodenum 1-2 contractions/min distal Can’t see both walls if gas present

   Duodenum – location Jejunum, ileum Ileocecocolic junction  Mucosa projects into lumen

       Wall thickness Wall layer pattern Motility Obstruction   Foreign body Neoplasia   Plication Intussception Neoplasia Metastatic calfication Pneumatosis intestinalis/coli

  Limited by air & feces Asses wall thickness & symmetry

   Abnormal wall thickness Mural & extramural masses Intussusception