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As RHA approaches the cystic duct, it lies parallel to the cystic duct for a short distance where it gives a branch to cystic duct and gallbladder. In about 20% of the cases, RHA crosses in front of the CHD. At the point of crossing, the RHA may indent the common hepatic duct, causing an appearance of pseudo stenosis. The RHA can indent the PV also when it ascends posterior to the CHD
