Kathryn Darras MD, Presenter: Nothing to Disclose

Tim O'Connell MD, Meng, Abstract Co-Author: President, Resolve Radiologic Ltd

Silvia D. Chang MD, Abstract Co-Author: Nothing to Disclose

Alison Clare Harris MBChB, Abstract Co-Author: Nothing to Disclose

1. To review the pathogenesis, MDCT appearance, pathogenesis, differential diagnosis, and management of abnormal gas encountered in the abdomen by organ system.

1. Pneumoperitoneum 1.1. Iatrogenic 1.2. Traumatic 1.2.1. Blunt 1.2.2. Penetrating 2. Pneumoretroperitoneum 2.1. Liver 2.1.1. Portal venous gas 2.1.2. Pyogenic abscess 2.2. Biliary system 2.2.1. Sphincter of Oddi incompetence 2.2.2. Gallstone ileus 2.2.3. Trauma 2.3. Gallbladder 2.3.1. Emphysematous cholecystitis 2.3.2. Perforated cholecystitis 2.4. Pancreas 2.4.1. Iatrogenic 2.4.2. Abscess 2.4.3. Duodenal diverticulum 2.4.4. Enteropancreatic fistula 2.5. Spleen 2.5.1. Pyogenic abscess 2.5.2. Microabscesses 2.6. Pneumatosis intestinalis 2.6.1. Bowel necrosis 2.6.2. Mucosal disruption 2.6.3. Increased mucosal permeability 2.6.4. Pulmonary disease 2.7. Kidneys 2.7.1. Peri-renal abscess 2.7.2. Perinephric emphysema 2.7.3. Pyelonephritis 2.7.4. Pyelitis 2.7.5. Carcinoma 2.8. Urinary Bladder 2.8.1. Iatrogenic 2.8.2. Trauma 2.8.3. Enteric fistula 2.8.4. Infection 3. “Edge of the film” 3.1. Soft tissues 3.1.1. Iatrogenic 3.1.2. Dissecting pneumomediastinum 3.2. Bones 3.2.1. Vertebral fracture 3.2.2. Abscess 4. Mimics 4.1. Chilaiditi syndrome 4.2. Hernias 4.3. Foregut diverticulum  

http://abstract.rsna.org/uploads/2014/14018419/14018419_848n.pdf

Darras, K, O'Connell, T, Chang, S, Harris, A, Classical Gas: What Every Radiologists Needs to Know about Unusual Gas in the Abdomen.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14018419.html