Open Access

Invasive micropapillary carcinoma of the extrahepatic bile duct and its malignant potential

  • Authors:
    • Tadashi Yoshizawa
    • Yoshikazu Toyoki
    • Hideaki Hirai
    • Toshihiro  Haga
    • Takahito Toba
    • Shingo Sakuraba
    • Kensuke Okano
    • Yunyan Wu
    • Hiroko  Seino
    • Satoko Morohashi
    • Kenichi Hakamada
    • Hiroshi Kijima
  • View Affiliations

  • Published online on: August 7, 2014     https://doi.org/10.3892/or.2014.3394
  • Pages: 1355-1361
  • Copyright: © Yoshizawa et al. This is an open access article distributed under the terms of Creative Commons Attribution License [CC BY_NC 3.0].

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Abstract

Invasive micropapillary carcinoma (IMPC) was originally described as a distinctive type of invasive carcinoma in the breast, but it has not been recognized as a histological type of the extrahepatic bile duct cancer. The present study demonstrated clinicopathological features and patient prognosis of IMPC. We examined histological reviews of 93 consecutive cases of the extrahepatic bile duct cancer and identified 13 cases which included IMPC component. The component of IMPC ranged from 5 to 60% of the primary tumor tissue, which was mainly detected at the invasive front of the tumor. Of the 13 cases, 12 (92.3%) carcinomas with IMPC showed lymph node metastasis more frequently compared to conventional adenocarcinoma (39.2%, P<0.001). Presence of IMPC component was significantly associated with poor overall survival (P=0.003). In conclusion, extrahepatic bile duct carcinoma with IMPC component showed significant lymphatic invasion, lymph node metastasis, and resulted in poor prognosis.
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October 2014
Volume 32 Issue 4

Print ISSN: 1021-335X
Online ISSN:1791-2431

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Spandidos Publications style
Yoshizawa T, Toyoki Y, Hirai H, Haga T, Toba T, Sakuraba S, Okano K, Wu Y, Seino H, Morohashi S, Morohashi S, et al: Invasive micropapillary carcinoma of the extrahepatic bile duct and its malignant potential. Oncol Rep 32: 1355-1361, 2014
APA
Yoshizawa, T., Toyoki, Y., Hirai, H., Haga, T., Toba, T., Sakuraba, S. ... Kijima, H. (2014). Invasive micropapillary carcinoma of the extrahepatic bile duct and its malignant potential. Oncology Reports, 32, 1355-1361. https://doi.org/10.3892/or.2014.3394
MLA
Yoshizawa, T., Toyoki, Y., Hirai, H., Haga, T., Toba, T., Sakuraba, S., Okano, K., Wu, Y., Seino, H., Morohashi, S., Hakamada, K., Kijima, H."Invasive micropapillary carcinoma of the extrahepatic bile duct and its malignant potential". Oncology Reports 32.4 (2014): 1355-1361.
Chicago
Yoshizawa, T., Toyoki, Y., Hirai, H., Haga, T., Toba, T., Sakuraba, S., Okano, K., Wu, Y., Seino, H., Morohashi, S., Hakamada, K., Kijima, H."Invasive micropapillary carcinoma of the extrahepatic bile duct and its malignant potential". Oncology Reports 32, no. 4 (2014): 1355-1361. https://doi.org/10.3892/or.2014.3394