Intraductal papillary mucinous neoplasm of the biliary tract: A real disease?

HPB (Impact Factor: 2.68). 12/2009; 11(8):684-91. DOI: 10.1111/j.1477-2574.2009.00122.x
Source: PubMed


Despite increasing numbers of reports, biliary tract intraductal papillary mucinous neoplasm (BT-IPMN) is not yet recognized as a unique neoplasm. The aim of the present study was to define the presence of BT-IPMN in a large series of resected biliary neoplasms.
From May 1994 to December 2006, BT-IPMN cases were identified by reviewing pathology specimens of all resected cholangiocarcinomas and other biliary neoplasms when cystic, papillary or mucinous features were cited in pathology reports.
BT-IPMN was identified in 23 out of 253 (9%) specimens using the strict histopathological criteria of IPMN. The most common presenting symptom was abdominal discomfort which was present in 15 patients (65%). Only one of the original operative pathology reports used the term IPMN; 16 (70%) used the terms cystic, mucinous and/or papillary. BT-IPMN was isolated to non-hilar extra-hepatic ducts in 12 (52%), intra-hepatic ducts in 6 (26%) and hilar extra-hepatic ducts in 5 patients (22%). Carcinoma was found in association with BT-IPMN in 19 patients (83%); 5-year survival was 38% after resection.
BT-IPMN occurs throughout the intra- and extra-hepatic biliary system and can be identified readily as a unique neoplasm. Broader acceptance of BT-IPMN as a unique neoplasm may lead to a better understanding of the pathogenesis of biliary malignancies.

Download full-text


Available from: KMarie Reid-Lombardo, Jul 15, 2014
1 Follower
24 Reads
  • Source
    • "In the present case, multiple insults including surgeries [16] due to hepatolithiasis, chronic HBV infection, and IHD stones may synergistically irritate peribiliary glands thereby causing progressively pathological changes and poses risk for malignant changes. In recent years, an entity named intraductal papillary mucinous neoplasms (IPMN) has been recognized as a unique neoplasm arising from intrahepatic biliary tree [17]. It is characterized by solitary and diffuse growth of biliary epithelia into the bile ducts with a papillary pattern. "
    [Show abstract] [Hide abstract]
    ABSTRACT: Background Hepatobiliary cystadenocarcinoma is a rare epithelial malignant neoplasm of the liver or extrahepatic bile ducts. Early diagnosis of hepatobiliary cystadenocarcinoma is difficult because of its asymptomatic features and rarity. Moreover, the molecular pathogenesis of hepatobiliary cystadenocarcinoma remains unclear. Herein, we described a case of hepatobiliary cystadenocarcinoma in female with chronic hepatitis B and repeated hepatolithiasis. Case presentation A 65-year-old woman with medical history of latent hepatitis B virus infection, repeated choledocholisthiasis, and cholecystitis was admitted due to a heterogeneous cystic mass (5.6 cm × 4 cm) shown on abdominal ultrasonography during regular physical checkup. The patient complained about irregular bowel movements with intermittent diarrhea for two months before presentation. Computed tomography (CT) disclosed a multiloculated cystic lesion in the left hepatic lobe with the presence of intraductal stones and dilatation of intrahepatic ducts. Histological results obtained from left lobectomy specimens showed hepatobiliary cystadenocarcinoma without accompanied mesenchymal stroma. Conclusion Notably, hepatobiliary cystadenocarcinoma without mesenchymal stroma seldom occurs in women and is usually associated with poor prognosis. We present the rare findings in this patient and suggest that chronic inflammatory insults in the intrahepatic bile ducts might shed light on the cystadenocarcinogenesis.
    BMC Gastroenterology 06/2014; 14(1):109. DOI:10.1186/1471-230X-14-109 · 2.37 Impact Factor
  • Source
    • "Most patients are between 50 and 70 years of age [11–18] and show a slight male predominance in most reported series [12–14, 16–18]. Intermittent abdominal pain and acute cholangitis or jaundice are the most common clinical manifestations [11–13, 16, 18, 19], but certain frequency (5–29%) of patients have no symptoms [12, 13, 16, 18, 19]. Around 30% of patients have a previous history or concomitant existence of biliary stones, as shown in the reports from Far Eastern countries [12, 16, 20], but not from Western countries [13]. "
    [Show abstract] [Hide abstract]
    ABSTRACT: Intraductal papillary neoplasm of the bile duct (IPNB) is a rare variant of bile duct tumors characterized by papillary growth within the bile duct lumen and is regarded as a biliary counterpart of intraductal papillary mucinous neoplasm of the pancreas. IPNBs display a spectrum of premalignant lesion towards invasive cholangiocarcinoma. The most common radiologic findings for IPNB are bile duct dilatation and intraductal masses. The major treatment of IPNB is surgical resection. Ultrasonography, computed tomography, magnetic resonance image, and cholangiography are usually performed to assess tumor location and extension. Cholangioscopy can confirm the histology and assess the extent of the tumor including superficial spreading along the biliary epithelium. However, pathologic diagnosis by preoperative biopsy cannot always reflect the maximum degree of atypia, because IPNBs are often composed of varying degrees of cytoarchitectural atypia. IPNBs are microscopically classified into four epithelial subtypes, such as pancreatobiliary, intestinal, gastric, and oncocytic types. Most cases of IPNB are IPN with high-grade intraepithelial neoplasia or with an associated invasive carcinoma. The histologic types of invasive lesions are either tubular adenocarcinoma or mucinous carcinoma. Although several authors have investigated molecular genetic changes during the development and progression of IPNB, these are still poorly characterized and controversial.
    05/2014; 2014(2):459091. DOI:10.1155/2014/459091
  • Value in Health 11/2005; 8(6). DOI:10.1016/S1098-3015(10)67454-2 · 3.28 Impact Factor
Show more