Published in:
01-09-2016 | Classics in Abdominal Imaging
The triangular cord sign
Published in: Abdominal Radiology | Issue 9/2016
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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 [1].
Fig. 1
Transverse sonogram near the porta hepatis. A Triangular cord sign is linear, of 4 mm thickness, and echogenic fibrous tissue (white triangular border) anterior to the normal portal vein near the porta hepatis. B Flow is not seen within the triangular cord on color-Doppler evaluation
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