We have reported a case of Mirizzi syndrome preoperatively diagnosed using
MR cholangiopancreatography. MRCP and T2-weighted image using a single-shot
fast spin-echo sequence accurately depicted all components of Mirizzi synd
rome, including impacted stone in the neck of the gallbladder compressing t
he common hepatic duct and wall-thickening of the gallbladder without any e
vidence of malignancy. The combination of MRCP and Ta-weighted image can be
counted on to replace conventional modalities of diagnosing Mirizzi syndro
me without any loss of diagnostic accuracy.