TY - JOUR T1 - ANSWER JF - Gut JO - Gut SP - 1089 LP - 1089 DO - 10.1136/gut.2007.141853a VL - 57 IS - 8 A2 - , Y1 - 2008/08/01 UR - http://gut.bmj.com/content/57/8/1089.abstract N2 - From the question on page 1048The computed tomography (CT) scan of the abdomen, thorax and extremities demonstrated extensive retroperitoneal gas, adjacent to the sigmoid colon, with extension into the neck, mediastinum, preperitoneum, left leg and … ER -