Cholangiopathy in extrahepatic portal venous obstruction. Radiological appearances.
OBJECTIVE
To evaluate cholangiographic abnormalities resulting from extrahepatic portal venous obstruction (EHPVO) by sonography and endoscopic retrograde cholangiopancreaticography (ERCP).


METHODS
Forty-three patients with an established diagnosis of EHPVO were subjected to duplex Doppler sonography and ERCP. Of these, 8 patients had obstructive jaundice.


RESULTS
Dilated common bile duct with pericholedochal varices showing a continuous type of flow pattern was seen in 5 EHPVO patients with obstructive jaundice. ERCP revealed cholangiographic abnormalities in 40 patients (93%). Extrahepatic bile ducts were involved in 100% of cases compared to intrahepatic bile ducts (57%). Abnormalities noted were contour irregularity with indentations, displacement and angulation, strictures and filling defects in the extrahepatic ductal system. Intrahepatic bile ducts showed dilatation with areas of narrowing and filling defects.


CONCLUSIONS
Cholangiographic abnormalities are very common in patients with EHPVO, even without clinical manifestations of biliary disease. Extrahepatic bile ducts are far more often involved compared to intrahepatic bile ducts. Extrinsic compression with contour irregularity is the most common cholangiographic finding. Sonographic findings are not diagnostic. Dilated common bile duct with pericholedochal varices was seen in only 5 patients.
Nagi
B
B
Department of Gastroenterology, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
Kochhar
R
R
Bhasin
D
D
Singh
K
K
D000293:Adolescent; D000328:Adult; D017734:Bile Ducts, Extrahepatic / Q000000981:diagnostic imaging*; D001653:Bile Ducts, Intrahepatic / Q000000981:diagnostic imaging; D002758:Cholangiography; D002760:Cholangiopancreatography, Endoscopic Retrograde; D002779:Cholestasis / Q000150:complications* / Q000000981:diagnostic imaging; D005260:Female; D006801:Humans; D006975:Hypertension, Portal / Q000150:complications; D008297:Male; D008875:Middle Aged; D018616:Ultrasonography, Doppler, Duplex