Clinicopathologic Study of Biliary Intraepithelial Neoplasia in Cholangiocarcinoma

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Abstract

Backgrounds and Aims: Biliary intraepithelial neoplasia (BilIN) is a precursor of cholangiocarcinoma (CC) and it has been associated with several chronic inflammatory conditions. This study aimed to elucidate the prevalence of BilIN in CC and its clinicopathological significance. Methods: Medical records of 193 patients with histologically confirmed CC were analyzed. We reviewed the pathology findings of 48 patients who underwent curative surgery for CC. Results: Of the 48 patients analyzed, 34 and 14 patients had extrahepatic and intrahepatic CC respectively. BilIN was detected in 28 patients (58%) and showed a significantly higher prevalence in extrahepatic CC (75%) than in intrahepatic CC (21%; p < 0.001). In the subgroup of 34 patients with extrahepatic CC, 25 and 9 patients were BilIN positive and negative respectively. Poor differentiation and T3 stage were significantly more common in the BilIN-negative group than in the BilIN-positive group (p < 0.05). The expression of MUC5AC, p53, and loss of Smad4 showed no difference between BilIN-positive CC and in BilIN-negative CC, but the Ki-67 expression was significantly higher (p < 0.05). Conclusion: BilIN-positive CC showed less invasiveness than negative cases. The Ki-67 expression was significantly higher in BilIN-positive CC.

Original languageEnglish
JournalDigestive Surgery
DOIs
Publication statusAccepted/In press - 2017 May 11

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Cholangiocarcinoma
Neoplasms
Medical Records

Keywords

  • Biliary intraepithelial neoplasia
  • Cholangiocarcinoma
  • Ki-67

ASJC Scopus subject areas

  • Surgery
  • Gastroenterology

Cite this

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title = "Clinicopathologic Study of Biliary Intraepithelial Neoplasia in Cholangiocarcinoma",
abstract = "Backgrounds and Aims: Biliary intraepithelial neoplasia (BilIN) is a precursor of cholangiocarcinoma (CC) and it has been associated with several chronic inflammatory conditions. This study aimed to elucidate the prevalence of BilIN in CC and its clinicopathological significance. Methods: Medical records of 193 patients with histologically confirmed CC were analyzed. We reviewed the pathology findings of 48 patients who underwent curative surgery for CC. Results: Of the 48 patients analyzed, 34 and 14 patients had extrahepatic and intrahepatic CC respectively. BilIN was detected in 28 patients (58{\%}) and showed a significantly higher prevalence in extrahepatic CC (75{\%}) than in intrahepatic CC (21{\%}; p < 0.001). In the subgroup of 34 patients with extrahepatic CC, 25 and 9 patients were BilIN positive and negative respectively. Poor differentiation and T3 stage were significantly more common in the BilIN-negative group than in the BilIN-positive group (p < 0.05). The expression of MUC5AC, p53, and loss of Smad4 showed no difference between BilIN-positive CC and in BilIN-negative CC, but the Ki-67 expression was significantly higher (p < 0.05). Conclusion: BilIN-positive CC showed less invasiveness than negative cases. The Ki-67 expression was significantly higher in BilIN-positive CC.",
keywords = "Biliary intraepithelial neoplasia, Cholangiocarcinoma, Ki-67",
author = "Kim, {Hyo Jung} and Kim, {Jae Seon} and Baek-Hui Kim and Young-Tae Bak",
year = "2017",
month = "5",
day = "11",
doi = "10.1159/000475848",
language = "English",
journal = "Digestive Surgery",
issn = "0253-4886",
publisher = "S. Karger AG",

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T1 - Clinicopathologic Study of Biliary Intraepithelial Neoplasia in Cholangiocarcinoma

AU - Kim, Hyo Jung

AU - Kim, Jae Seon

AU - Kim, Baek-Hui

AU - Bak, Young-Tae

PY - 2017/5/11

Y1 - 2017/5/11

N2 - Backgrounds and Aims: Biliary intraepithelial neoplasia (BilIN) is a precursor of cholangiocarcinoma (CC) and it has been associated with several chronic inflammatory conditions. This study aimed to elucidate the prevalence of BilIN in CC and its clinicopathological significance. Methods: Medical records of 193 patients with histologically confirmed CC were analyzed. We reviewed the pathology findings of 48 patients who underwent curative surgery for CC. Results: Of the 48 patients analyzed, 34 and 14 patients had extrahepatic and intrahepatic CC respectively. BilIN was detected in 28 patients (58%) and showed a significantly higher prevalence in extrahepatic CC (75%) than in intrahepatic CC (21%; p < 0.001). In the subgroup of 34 patients with extrahepatic CC, 25 and 9 patients were BilIN positive and negative respectively. Poor differentiation and T3 stage were significantly more common in the BilIN-negative group than in the BilIN-positive group (p < 0.05). The expression of MUC5AC, p53, and loss of Smad4 showed no difference between BilIN-positive CC and in BilIN-negative CC, but the Ki-67 expression was significantly higher (p < 0.05). Conclusion: BilIN-positive CC showed less invasiveness than negative cases. The Ki-67 expression was significantly higher in BilIN-positive CC.

AB - Backgrounds and Aims: Biliary intraepithelial neoplasia (BilIN) is a precursor of cholangiocarcinoma (CC) and it has been associated with several chronic inflammatory conditions. This study aimed to elucidate the prevalence of BilIN in CC and its clinicopathological significance. Methods: Medical records of 193 patients with histologically confirmed CC were analyzed. We reviewed the pathology findings of 48 patients who underwent curative surgery for CC. Results: Of the 48 patients analyzed, 34 and 14 patients had extrahepatic and intrahepatic CC respectively. BilIN was detected in 28 patients (58%) and showed a significantly higher prevalence in extrahepatic CC (75%) than in intrahepatic CC (21%; p < 0.001). In the subgroup of 34 patients with extrahepatic CC, 25 and 9 patients were BilIN positive and negative respectively. Poor differentiation and T3 stage were significantly more common in the BilIN-negative group than in the BilIN-positive group (p < 0.05). The expression of MUC5AC, p53, and loss of Smad4 showed no difference between BilIN-positive CC and in BilIN-negative CC, but the Ki-67 expression was significantly higher (p < 0.05). Conclusion: BilIN-positive CC showed less invasiveness than negative cases. The Ki-67 expression was significantly higher in BilIN-positive CC.

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