Department of Radiology, College of Medicine Hanyang University
ABSTRACT
Correct diagnosis of intrahepatic stone with differentiation from extrahepatic stone is very important because of their different surgical procedure.
The ultrasonography is very simple and noninvasive diagnostic method for detection of intrahepatic stone than other method.
So the authors analysed the ultrasonographic findings of 30 patients with intrahepatic stones and the results are as follows:
1. Among 30 cases, 13(43.3%) were male, 17(56.7%) were female with predominancy in 5th and 6th decades.
2. 1) In distribution of stones 16 cases(53.5%) were in the left duct, 11 cases(36.7%) in both ducts, 3 cases(10%) in the right duct.
2) In location of intrahepatic stones, 9 cases(30%) were only in the intrahepatic ducts, 21 cases (70%) associated stones in the extrahepatic duct and or GB.
3. In sonography of 30 cases of intrahepatic stones
1) The shape of stone was round in 27 cases(90%) and tubular due to impacted stone in 3 cases (10%)
2) The echogenicity of stones was strong in 25 cases(83.3%) and weak in 5 cases(16.7%).
3) The shadow posterior to stones was strong in 23 cases(76.7%) and weak in 7 cases(23.3%)
4. As associated findings, metastatic lesion in liver 2 cases(6.7%), liver cirrhosis 2 cases(6.7%), hepatic and perihepatic abscess 4 cases(13.3%)were found liver(13.3%) were found.
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