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MR imaging findings of clonorchiasis.

Jeong YY, Kang HK, Kim JW, Yoon W, Chung TW, Ko SW - Korean J Radiol (2004 Jan-Mar)

Bottom Line: Intrahepatic bile duct abnormalities were seen in 23 (89%) of the 26 patients.The most common finding was mild dilatation of the intrahepatic bile duct which was found in 21 (81%). "Too many intrahepatic ducts" were found in 16(62%), wall enhancement and thickening in 21 (81%) and filling defects and ductal stricture in the intrahepatic bile duct in 6 (24%) and 3 (12%) patients, respectively.Extrahepatic ductal dilation was found in 5 (19%) and 9 (35%) revealed hepatobiliary malignancy.

View Article: PubMed Central - PubMed

Affiliation: Department of Diagnostic Radiology, Chonnam National University Medical School, Gwang-Ju, Korea. yjeong@chonnam.ac.kr

ABSTRACT

Objective: The purpose of this study was to evaluate the MR spectrum and MR cholangiographic imaging findings of clonorchiasis.

Materials and methods: We reviewed 26 patients with confirmed clonorchiasis by either stool tests (n=24) or surgery (n=2). MR imaging was performed on a 1.5 T system (GE Medical Systems, Milwaukee, WI) with a torso coil. Axial T1- and T2-weighted, gadolinium-enhanced dynamic images and MR cholangiography were obtained. Image analyses were used to identify abnormalities of the intrahepatic and extrahepatic bile ducts and the presence of hepatobiliary malignancy. All MR examinations were reviewed by the consensus of two abdominal radiologists.

Results: Intrahepatic bile duct abnormalities were seen in 23 (89%) of the 26 patients. The most common finding was mild dilatation of the intrahepatic bile duct which was found in 21 (81%). "Too many intrahepatic ducts" were found in 16(62%), wall enhancement and thickening in 21 (81%) and filling defects and ductal stricture in the intrahepatic bile duct in 6 (24%) and 3 (12%) patients, respectively. Extrahepatic ductal dilation was found in 5 (19%) and 9 (35%) revealed hepatobiliary malignancy.

Conclusion: MR imaging revealed various findings of clonorchiasis, including dilatation, wall enhancement, stricture of the intrahepatic ducts and filling defect within the intrahepatic bile duct.

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Clonorchiasis in a 58-year-old man. Gadolinium-enhanced echo fast gradient echo 3D (TR/TE, 7/2) transverse (A) and coronal (B) images show periductal enhancement of mildly dilated intrahepatic bile duct (arrows). There is no dilatation of extrahepatic bile duct.
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Figure 2: Clonorchiasis in a 58-year-old man. Gadolinium-enhanced echo fast gradient echo 3D (TR/TE, 7/2) transverse (A) and coronal (B) images show periductal enhancement of mildly dilated intrahepatic bile duct (arrows). There is no dilatation of extrahepatic bile duct.

Mentions: The MR findings of the patients with clonorchiasis are summarized in Table 1. Intrahepatic bile duct abnormalities were seen in 23 (89%) of the 26 patients. The most common finding was mild dilation of the intrahepatic bile duct, which was present in 21 (81%) patients. "Too many intrahepatic ducts" sign was found in 16 (62%) of the 26 patients (Fig. 1). Wall enhancement and thickening were identified in 21 (81%) patients (Fig. 2), and filling defects (Fig. 3) and ductal stricture in 6 (24%) and 3 (12%), respectively.


MR imaging findings of clonorchiasis.

Jeong YY, Kang HK, Kim JW, Yoon W, Chung TW, Ko SW - Korean J Radiol (2004 Jan-Mar)

Clonorchiasis in a 58-year-old man. Gadolinium-enhanced echo fast gradient echo 3D (TR/TE, 7/2) transverse (A) and coronal (B) images show periductal enhancement of mildly dilated intrahepatic bile duct (arrows). There is no dilatation of extrahepatic bile duct.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2698110&req=5

Figure 2: Clonorchiasis in a 58-year-old man. Gadolinium-enhanced echo fast gradient echo 3D (TR/TE, 7/2) transverse (A) and coronal (B) images show periductal enhancement of mildly dilated intrahepatic bile duct (arrows). There is no dilatation of extrahepatic bile duct.
Mentions: The MR findings of the patients with clonorchiasis are summarized in Table 1. Intrahepatic bile duct abnormalities were seen in 23 (89%) of the 26 patients. The most common finding was mild dilation of the intrahepatic bile duct, which was present in 21 (81%) patients. "Too many intrahepatic ducts" sign was found in 16 (62%) of the 26 patients (Fig. 1). Wall enhancement and thickening were identified in 21 (81%) patients (Fig. 2), and filling defects (Fig. 3) and ductal stricture in 6 (24%) and 3 (12%), respectively.

Bottom Line: Intrahepatic bile duct abnormalities were seen in 23 (89%) of the 26 patients.The most common finding was mild dilatation of the intrahepatic bile duct which was found in 21 (81%). "Too many intrahepatic ducts" were found in 16(62%), wall enhancement and thickening in 21 (81%) and filling defects and ductal stricture in the intrahepatic bile duct in 6 (24%) and 3 (12%) patients, respectively.Extrahepatic ductal dilation was found in 5 (19%) and 9 (35%) revealed hepatobiliary malignancy.

View Article: PubMed Central - PubMed

Affiliation: Department of Diagnostic Radiology, Chonnam National University Medical School, Gwang-Ju, Korea. yjeong@chonnam.ac.kr

ABSTRACT

Objective: The purpose of this study was to evaluate the MR spectrum and MR cholangiographic imaging findings of clonorchiasis.

Materials and methods: We reviewed 26 patients with confirmed clonorchiasis by either stool tests (n=24) or surgery (n=2). MR imaging was performed on a 1.5 T system (GE Medical Systems, Milwaukee, WI) with a torso coil. Axial T1- and T2-weighted, gadolinium-enhanced dynamic images and MR cholangiography were obtained. Image analyses were used to identify abnormalities of the intrahepatic and extrahepatic bile ducts and the presence of hepatobiliary malignancy. All MR examinations were reviewed by the consensus of two abdominal radiologists.

Results: Intrahepatic bile duct abnormalities were seen in 23 (89%) of the 26 patients. The most common finding was mild dilatation of the intrahepatic bile duct which was found in 21 (81%). "Too many intrahepatic ducts" were found in 16(62%), wall enhancement and thickening in 21 (81%) and filling defects and ductal stricture in the intrahepatic bile duct in 6 (24%) and 3 (12%) patients, respectively. Extrahepatic ductal dilation was found in 5 (19%) and 9 (35%) revealed hepatobiliary malignancy.

Conclusion: MR imaging revealed various findings of clonorchiasis, including dilatation, wall enhancement, stricture of the intrahepatic ducts and filling defect within the intrahepatic bile duct.

Show MeSH
Related in: MedlinePlus