Evidence for the neoplastic transformation of Von-Meyenburg complexes

Dhanpat Jain, Venetia R. Sarode, Fadi W. Abdul-Karim, Robert Homer, Marie E. Robert

Research output: Contribution to journalArticle

60 Citations (Scopus)

Abstract

Von-Meyenburg complexes (VMC) are seen frequently in the liver and are largely considered to be innocuous, with only 11 cases reported in the literature of neoplastic transformation of VMCs. The authors report three cases of cholangiocarcinoma, each occurring in a background of fibrosis and nodularity that was reported initially as micronodular cirrhosis. Although the livers showed cirrhosis, the central veins were often preserved, and regenerative activity was patchy and focal. Histologic examination revealed many VMCs, and a gradual transition from VMCs to hyperplastic or adenomatous lesions and cholangiocarcinoma. The adenomatous lesions consisted of extensive replacement of the parenchyma by tumor-like nodules of ductular proliferations without obvious features of malignancy. All three patients were older than 60 years of age and had portal hypertension. Computed tomographic scans showed multiple, small renal cysts in one patient. Immunohistochemical staining showed positivity for epithelial membrane antigen, carcinoembryonic antigen, and keratins (AE1/AE3 and CAM5.2) in tumor cells, consistent with cholangiocarcinoma. The pattern of fibrosis and nodularity in these cases is not typical of either congenital hepatic fibrosis or usual cirrhosis. The authors propose that these patients represent another aspect in the spectrum of ductal plate malformations that may be modified by other factors such as alcohol, drugs, or infection. To their knowledge, neoplastic transformation of VMCs in the background of such changes has never been reported before.

Original languageEnglish (US)
Pages (from-to)1131-1139
Number of pages9
JournalAmerican Journal of Surgical Pathology
Volume24
Issue number8
DOIs
StatePublished - Aug 2000

Fingerprint

Cholangiocarcinoma
Fibrosis
Mucin-1
Neoplasms
Carcinoembryonic Antigen
Portal Hypertension
Keratins
Liver Cirrhosis
Cysts
Veins
Alcohols
Staining and Labeling
Kidney
Liver
Infection
Pharmaceutical Preparations

Keywords

  • Cholangiocarcinoma
  • Liver
  • Microhamartoma
  • Von-Meyenburg complex

ASJC Scopus subject areas

  • Anatomy
  • Pathology and Forensic Medicine

Cite this

Evidence for the neoplastic transformation of Von-Meyenburg complexes. / Jain, Dhanpat; Sarode, Venetia R.; Abdul-Karim, Fadi W.; Homer, Robert; Robert, Marie E.

In: American Journal of Surgical Pathology, Vol. 24, No. 8, 08.2000, p. 1131-1139.

Research output: Contribution to journalArticle

Jain, Dhanpat ; Sarode, Venetia R. ; Abdul-Karim, Fadi W. ; Homer, Robert ; Robert, Marie E. / Evidence for the neoplastic transformation of Von-Meyenburg complexes. In: American Journal of Surgical Pathology. 2000 ; Vol. 24, No. 8. pp. 1131-1139.
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