Journal of Korean Society of Medical Ultrasound 1989;8(1): 8-12.
sonography in evaluation of gallbladder carcinoma: comparision with CT
Byung Ihn Choi
ABSTRACT
A total of 35 patients with gallbladder carcinoma were studied by sonography and/or computed tomography (CT) to evaluate the relative accuracy of the methods. The preoperative diagnosis was made correctly by sonography in 70% and by CT in 61%. Sonography was slightly superior to CT in diagnosing the primary tumor but this is not statistically significant. Seventeen tumors (49%) were massive type, three(9%) were thickened wall type and 15(42%) were intraluminal type. Diagnostic accuracy of sonography for each type was 33%, 78% and 73% respectively. Associated findings were direct invasion of the liver by tumor (66%), lymphadenopathy(60%), dilatation of biliary tree (37%) and gallstones (31%). Sonography was superior to CT in identifying the direct invasion into the liver and detecting gallstones whilst CT was superior to sonography in detecting lymphadenopathy. On the basis of our result, we believe that sonography and CT are complementary examinations in the evaluation of carcinoma of the gallbladder.
Keywords: gallbladder neoplasms, US studies
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