Detection of albumin messenger RNA in hepatic and extrahepatic neoplasms: A marker of hepatocellular differentiation

M. Krishna, R. V. Lloyd, Kenneth P. Batts

Research output: Contribution to journalArticle

48 Citations (Scopus)

Abstract

Albumin is a ubiquitous protein synthesized only by hepatocytes. Detection of albumin messenger RNA (mRNA) in neoplastic and non-neoplastic tissues using in situ hybridization may be useful in demonstrating hepatocellular differentiation. We investigated the presence of albumin mRNA by in situ hybridization in 69 hepatic and 29 extrahepatic tumors to determine its sensitivity and specificity for hepatocellular differentiation. Albumin mRNA was detected in 22 of 23 hepatocellular carcinomas (96%); all hepatoblastomas, hepatocellular adenomas, and focal nodular hyperplasias; and within the hepatoid areas of an extrahepatic malignant mixed germ cell tumor. All other hepatic and extrahepatic tumors were negative for albumin mRNA. The staining was intense in local nodular hyperplasias, weak in hepatocellular adenomas, and variable in hepatocellular carcinomas and hepatoblastomas. Nonneoplastic, noncirrhotic liver was present in 50 cases; all were positive for albumin mRNA with variable staining, which was usually more intense than in the neoplasms. A zonal pattern of staining was present in 49 (98%) of these, with more intense staining within acinar zone 1 and least in zone 3. This study shows that albumin mRNA is a specific marker of hepatocellular differentiation but may be present in extrahepatic germ cell tumors with hepatoid features. For primary hepatocellular carcinomas, in situ hybridization for albumin mRNA is a useful adjunct diagnostic method.

Original languageEnglish (US)
Pages (from-to)147-152
Number of pages6
JournalAmerican Journal of Surgical Pathology
Volume21
Issue number2
DOIs
StatePublished - 1997

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Differentiation Antigens
Liver Neoplasms
Albumins
Messenger RNA
Liver Cell Adenoma
Staining and Labeling
In Situ Hybridization
Hepatoblastoma
Hepatocellular Carcinoma
Germ Cell and Embryonal Neoplasms
Liver
Malignant Mixed Tumor
Focal Nodular Hyperplasia
Neoplasms
Carcinoma in Situ
Hyperplasia
Hepatocytes
Sensitivity and Specificity

Keywords

  • Albumin messenger RNA
  • Hepatic
  • Neoplasm

ASJC Scopus subject areas

  • Anatomy
  • Pathology and Forensic Medicine

Cite this

Detection of albumin messenger RNA in hepatic and extrahepatic neoplasms : A marker of hepatocellular differentiation. / Krishna, M.; Lloyd, R. V.; Batts, Kenneth P.

In: American Journal of Surgical Pathology, Vol. 21, No. 2, 1997, p. 147-152.

Research output: Contribution to journalArticle

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