Radiological diagnosis and staging of hilar cholangiocarcinoma

Figure 2 Intraductal growing cholangiocarcinoma. A: Axial computed tomography in the portal phase in a 52-year-old male shows a heterogeneously enhancing endoluminal lesion with dysmorphic calcifications (arrow). Note biliary dilatation upstream; B: Coronal thin-slab (echo spacing 4.2 ms, effective echo time 183 ms, image matrix 272 x 512, FOV 385 mm) T2-W sequence shows marked dilatation of the common hepatic duct and a hypointense endoluminal mass (arrow); C: Axial thin-slab (echo spacing 4.2 ms, effective echo time 183 ms, image matrix 272 x 512, FOV 385 mm) T2-W sequence shows a hypointense filling defect consistent with polypoid cholangiocarcinoma in the common hepatic duct (arrow).