Caroli's disease: a central dot means a lot.

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1997-10-05
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Abstract
We present here a patient of congenital non-obstructive focal dilatation of intrahepatic biliary radicles (Caroli's disease). The peculiar configuration of dilated intrahepatic biliary channels with central portal vein radicles was picked up sonologically as the 'central dot' sign. Awareness of this sign allows an accurate diagnosis without resorting to more invasive and expensive investigations.
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Seth AK, Chawla Y, Dhiman RK, Gupta S, Suri S, Dilawari JB. Caroli's disease: a central dot means a lot. Tropical Gastroenterology. 1997 Oct-Dec; 18(4): 165-6