TUMOURS OF THE BILE DUCT Benign tumours of the bil

TUMOURS OF THE BILE DUCT Benign tumours of the bile duct
Benign neoplasms such as papilloma, adenoma, papilloma - tosis, leiomyoma and neural and endocrine tumours causing biliary obstruction are uncommon and may be an incidental finding. For symptomatic patients, the duration of  symptoms may vary from a few days to months. Intraductal papillary neoplasm of the bile duct Intraductal papillary neoplasm of  the bile duct (IPNB) is a rare variant of  bile duct tumours characterised by papillary growth within the bile duct lumen with ductal dilatation. It is regarded as the biliary counterpart of  an intraductal papillary - mucinous neoplasm of  the pancreas. IPNBs display a spectrum from premalignant lesions to invasive cholangiocarcinoma. The most common radiological findings are bile duct dilata - o - tion and intraductal masses. USG, CT and MRI are usually - performed to assess tumour location and extension. Cholan - gioscopy can confirm the histology and assess the extent of the tumour, including superficial spr ead along the biliary for surgical resection in a manner similar to that for other types of  intrahepatic cholangiocarcinomas and extrahepatic bile duct carcinomas, i.e. major hepatectomy with or without extrahepatic bile duct resection.