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Clonorchiasis: sonographic findings in 59 proved cases
1Department of Diagnostic Radiology, Kyung Hee University Hospital, Seoul, Korea.
AJR. American Journal of Roentgenology
|April 1, 1989
Summary
Clonorchiasis, a parasitic bile duct disease, presents characteristic sonographic findings. Ultrasound reveals diffuse intrahepatic bile duct dilatation and increased wall echogenicity, aiding diagnosis.
Area of Science:
- Medical Imaging
- Parasitology
- Gastroenterology
Background:
- Clonorchiasis is a parasitic bile duct infection common in endemic regions.
- Infection results from consuming raw freshwater fish containing the parasite.
Purpose of the Study:
- To analyze and characterize the sonographic findings in patients diagnosed with clonorchiasis.
- To establish key ultrasound features for diagnosing clonorchiasis.
Main Methods:
- Prospective sonographic examination of 59 patients with suspected clonorchiasis.
- Confirmation of diagnosis through demonstration of parasite eggs in stool samples.
Main Results:
- All patients exhibited diffuse small intrahepatic bile duct dilatation.
- Increased intrahepatic bile duct wall echogenicity was noted in 66% of cases.
- Echogenic foci, indicative of adult worms, were observed in the gallbladder in 29% of patients.
Conclusions:
- Characteristic sonographic patterns include bile duct dilatation and increased wall echogenicity.
- The presence of nonshadowing echogenic foci in the gallbladder is a significant diagnostic indicator.
- Sonography is a valuable tool for suspecting and diagnosing clonorchiasis.