S18 Ultrasound in Medicine and Biology IMO 1015 APPENDICITIS: STILL AN ULTPASSONOGRAPHIC CHALLENGE Iara E.Carvalho, Rita Secaf, Ana Paula Moura, Luciana Cerri, Luciana Nogueira, Giovanni Cerri, Hospital Sirio LibanCs, Sao Paula, SP., Brazil. Acute appendicitis is the most common cause of acute abdominal pain. In most cases clinical and laboratorial findings permit an accurate diagnosis. However in young women a rate of nontherapeutic appendectomy is 40-458. In the last 10 years there has been more than 100 clinical investigations into the role of US and CT in the diagnosis of appendicitis. Ultrasound has a reported sensitivity between 80 and 95%. The purpose of this exhibits is:(l) to review the ultrasound findings of typical appendicitis using high resolution graded compression technique, color Doppler and endovaginal probe, (2) to show ultrasonographic findings in some patients with atypical clinical presentation of appendicitis, caused by an unusual located appendix or cecum (retrocecal, left sided, pelvic). In this exhibits we try to emphasize the importance of the knowledge of the anatomic1 variations of the cecum and appendix location when studying a patient with abdominal pain. IMO 1016 THE SONOGRAPHIC SPECTRUM OF DIVERTICULITIS Iara E.Carvalho, Rita G.M.Secaf, Marcos Costacurta, Aparecida Oqasawara ,Ana Paula C.Moura, Luciana Cerri ,- Giovanni G. CUtZl, Hospital Sirio Liban&, Sao Paulo,SP, Brazil. Diverticular inflammation is the most conunon cause of left lower quadrant pain in adults in emergency radiology. Imaging methods are required in the clinical suspicion of diverticulitis in order to distinguish from other diseases with the same syntoms and to evaluate the pericolic extension of the inflammatory process that may require surgical intervention. High resolution real time sonography is a very sensitive and specific method for acute colonic diverticulitis and complicated abscess. The purpose of this exhibits is to present the spectrum of diverticulitis in ultrasound (with the help of Doppler and endocavitary probe) , that can vary from wall thickness to big abscess. Pictorial images are obtained to make a correlation of the different stages of the inflammatory process of the colon with US.,CT and contrast enema. Volume 23, Supplement 1, 1997 IMO 1017 ULTRASOUND’S USEFUL VALUE TO ABDOMINOSCOPE-CHOLECSYTECTOMY. Li Tong, Zhuang Shihua, Yan Xiourong, Duan Xiaoling, Wang Yanhong, Li Yunming Xinjiang Armed Police General Hospital, Unnnqi Xinjiang, China. The paper records ultrasound’s surveillance to 1885 cases of abdommoscope-cholec stectomy, the result of which showed that with 9 trasound s promp?, 1771 cases (93.9%) were fit for abdommoscope-cholecystectomy right now, 95 cases abdominoscope-cholecystectomies (5% had to be put off, 19 cases (1.1%) werednot B abdominoscope-cholecystectom t .for K routme, laparotomy to excise gallblader ad to be done. All the operations were successful with no complication. From above we can say ultrasound’s surveillance is ver important to abdominoscope-cholecystectomy. Before it, according to ultrasound’s prompt, we can identify combination of patholo ‘c than whether there is connectron of rver an P P e degree, bile duct combination and their pathology change. From the above si know w mh case has to be treated with anti- ?? s, we can be easy to classify cases and to inflammatory therapy before abdominoscope- cholecystectomy. IMO 1018 THE CLASSIFICATION OF UNILOCULAR HYDATIDOSIS AND ITS ULTRASONOGRAPHIC FEATURES. Li Tong, Yan Xiou-rong, Duang Xiao-ling, Zhang Gpo;qin, Wang Yiang-hong Xmjmng Armed Pohce General Hospital, Urumqi Xinjiang, China. We analyzed the ultrasonographic examination materials of 268 cases with tmilocular hydatidosis, which were proved by patholo According to the positrons oP and operation. foci, 200 cases (7.6%) lied m kidney thyror a arenchymatous organs liver, pleen, 6 mammary gland, worn ); 48 cases (17,9/o) in pneumatic organ (lung); 12 cases (4.48%) in cavity organs (abdommal cavi bladder, ovary); 5 cases (1.87%) in muscle (strai 8 i muscle of abdomen, quadriceps muscle of thigh, gastroenemius muscle); 3 cases (1,12%) in bone and articulation (maxillary bone, knee joint). According to the patholo hydatidosis can be classifie F base, unilocular mto 3 types, which hydatidosis in liver and other organ. Based on the pathology anB arenchymatous dissection and by sonogra hit features, the method of dividing of unilocular ydatrdosis mto 5 classes and 3 types is R . helpful to dtfferential diagnosis and treatment and it has important clinic value.