"T1: low or iso signal"
"T2: slightly hyperintense"
"MRCP: may allow direct visualisation of the papillary lesions or an irregular lumen"
"DWI/ADC: diffusion restriction may be seen within the papillary components 1"
"Prognosis for patients with IPNB, even with invasive components, has been reported as better compared to cholangiocarcinoma. After curative resection, they show a 5-year survival rate of 47-84% 1."
Expected headings
"Macroscopic appearances"
"CEUS"
"Unlike a pancreatic IPMN, which are commonly lined by mucinous epithelium, IPNBs are lined by biliary epithelium 4. There is a papillary proliferation of the atypical epithelial cells with central fibrovascular cores, as well as mucinous cells 1,2."