tailieunhanh - Báo cáo toán học: "Contrast-Enhanced Ultrasonograpic Findings in Pancreatic Tumors Chiara RECALDINI, Gianpaolo CARRAFIELLO, Elena BERTOLOTTI, Maria Gloria ANGERETTI, Carlo FUGAZZOLA"

Tuyển tập các báo cáo nghiên cứu khoa học ngành y học tạp chí Medical Sciences dành cho các bạn sinh viên ngành y tham khảo đề tài: Contrast-Enhanced Ultrasonograpic Findings in Pancreatic Tumors Chiara RECALDINI, Gianpaolo CARRAFIELLO, Elena BERTOLOTTI, Maria Gloria ANGERETTI, Carlo FUGAZZOLA. | Int. J. Med. Sci. 2008 5 203 Short Research Communication International Journal of Medical Sciences ISSN 1449-1907 2008 5 4 203-208 Ivyspring International Publisher. All rights reserved Contrast-Enhanced Ultrasonograpic Findings in Pancreatic Tumors Chiara RECALDINI Gianpaolo CARRAFIELLO Elena BERTOLOTTI Maria Gloria ANGERETTI Carlo FUGAZZOLA Department of Radiology University of Insubria - Viale Borri 57 21100 Varese Italy Correspondence to Chiara Recaldini MD Department of Radiology University of Insubria Viale Borri 57 21100 VARESE Italy . Tel 0039 0332 278056 Fax 0039 0332 263104 E-mail chiarec@ Received Accepted Published OBJECTIVE The purpose of this article is to present the potentials and limits of contrast-enhanced ultrasonography CEUS in the characterization of pancreatic tumors usually hypoechoic or cystic at B-mode ultrasound. CONCLUSION As regards hypoechoic lesions at B-mode ultrasound CEUS often can distinguish among adenocarcinoma islet cell tumor and serous microcystic adenoma. As regards cystic lesions CEUS in most cases doesn t add significative diagnostic information therefore CT MR or endoscopic US are almost always necessary for their proper characterization. Key words contrast-enhanced ultrasonography pancreatic tumors Introduction Imaging of pancreatic tumors takes advantage of various techniques such as B-mode ultrasound US computed tomography CT and magnetic resonance Mr . B-mode US allows the detection of focal lesions even small ones about 1 cm in diameter that usually are hypoechoic or cystic. However within hypoechoic lesions B-mode US is not able to differentiate adenocarcinoma the most frequent tumor islet cell tumor or other more rare diseases microcystic adenoma focal pancreatitis . Similarly within cystic lesions B-mode US is not often able to differentiate pseudocyst serous cystadenoma mucinous cystic neoplasm MCN intraductal papillary mucinous tumor IPMT . The aim of our