Results: Aortic

thrombi may have devastating complications like peripheral embolism and may cause angina and ischemia, so it requires prompt recognition and treatment. Conclusion: We report a case of a descending aorta thrombus in a patient with CRC and liver metastases, which arised without any surgical intervention or chemotherapy and has not been reported previously in literature. Key Word(s): 1. Aortic thrombus; 2. Ca Rectum; 3. Metastasis; Presenting Author: TONGMING FU Additional Authors: CAICHANG CHUN Corresponding Author: CAICHANG CHUN Affiliations: jiujiang university; university of jiujiang Objective: Summary clinical features of ischemic colitis, and test the fluctuation of plasma D-dimer, to evaluate the value of plasma D-dimer in diagnosing ischemic colitis. RG7204 Methods: Analysis CAL-101 price the date of 31 cases with ischemic colitis, admitted in our hospital from December 2007 to December 2011. Dignosised mainly by endoscopy, Histological pathology, ultrasound and CTA. plasma D-dimer level need to tested for every patient at the first day after admitted. colonoscopy should done after 48 hours, two weeks later, do colonoscopy again. Results: All patients are above the age of 55, average age is 58.6. Typical endoscopic

features include ischemia, erythema, crisp, gangrene, ulceration, exudation and bleeding lie in submucosa, all of these features are no specifical. Pathological features include epithelial degeneration, necrosis, regeneration, hemorrhage, edema, exudation of protein-rich ingredients.

levels of plasma D-dimer in all patients are 1450 ± 242 ng/ml, much higher than nomal level. Conclusion: ① Ischemic colitis always accompanied with other basic diseases; ② colonoscoy is a very Sensitive method for dignosis at early stage. ③ plasma D-dimer increasing much at early stage for ischemin colitis, which inply plasma D-dimer can play a importment role in diagnosing ischemic colitis. Key Word(s): 1. clinical features; 2. ischemic colitis; 3. plasma D-dimer; 4. diagnosis; Presenting Author: ZHANGYU JIE Additional Authors: 上海皓元医药股份有限公司 LI YANI, LIANG SHUHUI, HONG LIU, WANG BIAOLUO, WU KAICHUN Corresponding Author: ZHANGYU JIE Affiliations: Fourth Military Medical University Objective: A 18-year-old man presented to the emergency department with intermittent abdominal pain for two week, severe constipation for 48 hours. The patient had otherwise unremarkable medical history. On clinical examination, there were scarce bowel sounds and the abdomen was diffusely tender. There were no palpable masses and no feces in the rectum. Clinically, there was voluntary guarding, but no signs of peritonitis. Methods: Blood tests were within normal limits. Abdominal radiographs showed a distended large bowel with a remarkable distention of the left colon without small bowel involvement. Results: During the next 24 hours, the patient’s clinical and radiologic picture deteriorated.