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MRI also shows marked wall thickening, and the signal intensities of this thickening were high on T1- and T2-weighted images. A thin hypointense rim was seen along the inner surface of the thickened wall on the T2-weighted image (Fig. 2). MR cholangiopancreatography (MRCP) showed a stretched cystic duct and findings similar to those with T2-weighted images. However, there was no definite continuation between the GB body and the cystic duct even on source images of MRCP