Nov 15, 2022 · The triangular cord sign is a triangular or tubular echogenic cord of fibrous tissue, representing the ductal remnant of the extrahepatic bile duct, seen in the porta hepatis at ultrasonography, and is relatively specific for the diagnosis of biliary atresia 1,2.

Oct 30, 2024 · Biliary atresia is a congenital biliary disorder that is characterized by an absence or severe deficiency of the extrahepatic biliary tree. It is one of the most common causes of neonatal cholestasis, often causing cirrhosis immediately and leading to death and accounts for over half of children who undergo liver transplantation.

A positive triangular cord sign is hallmark of the biliary atresia. Triangular cord sign is a thick tubular or triangular echogenic density (fibrous ductal remnant) along the anterior aspect of the portal vein at its bifurcation into the right and left branches.

Triangular cord sign represents the fibrous ductal remnant of the extrahepatic bile duct in biliary atresia. The objective criterion for positive triangular cord sign has been described as 4 mm thickness or more of the echogenicity along anterior wall …

Apr 4, 2016 · The triangular cord sign is an useful sonographic finding of biliary atresia representing a triangular, not vascularized, echogenic spot at the porta hepatis on a transverse (Fig. 1A, B) or longitudinal scan due to fibrotic remnant of biliary tract .

Aug 1, 2001 · The TC sign is a simple, timesaving, and reliable diagnostic tool in the evaluation of infants with infantile cholestasis. The TC sign may also prove to be helpful in following patients after hepatoportoenterostomy. We suggest a new diagnostic strategy for patients suspected to have biliary atresia.

Nov 23, 2012 · Detection of the triangular cord sign was defined as indicative of biliary atresia, and the absence of the triangular cord sign was interpreted as indicative of neonatal hepatitis or other causes of infantile cholestasis.

There are some evidences that triangular cord (TC) sign, i.e., triangular structure located cranial to the portal vein bifurcation on ultrasonographic examination, is suggestive of BA in suspected cases.

Jan 1, 2010 · There are some evidences that triangular cord (TC) sign, i.e., triangular structure located cranial to the portal vein bifurcation on ultrasonographic examination, is suggestive of BA in...

A triangular cord sign was found in 27 of 29 infants with biliary atresia and in one of 26 infants with neonatal hepatitis or other causes of infantile cholestasis. The diagnos-