The use of special stains in liver biopsy interpretation: Implications for the management of liver disease in Nigeria

Niger J Clin Pract. 2016 Jul-Aug;19(4):523-9. doi: 10.4103/1119-3077.183309.

Abstract

Context: The evaluation of a liver biopsy requires the use of stains other than routine hematoxylin and eosin (H and E) to highlight many important features.

Aims: Most Nigerian Histopathology Departments do not routinely perform special stains (personal communication by authors). This study aims to re-evaluate a set of liver biopsies which has been diagnosed solely on H and E stains by performing a standard set of special stains on them.

Settings and design: This is a retrospective analysis.

Materials and methods: The formalin fixed paraffin embedded blocks of liver biopsies reported in two histopathology laboratories between 2008 and 2013 were retrieved. These were stained with H and E and the following standard special stains for liver tissue histology - Perl's Prussian blue, reticulin, Sirius red, Shikata orcein, and periodic acid-Schiff with diastase. The stained slides were re-analyzed.

Statistical analysis used: No formal statistical analysis was performed, but results are summarized and tabulated by summary statistics, where appropriate.

Results: Seventy-four liver biopsy paraffin blocks were received in the laboratories. Fifty-three (71.6%) were suitable for analysis out of which 51 (68.9%) had their clinical details retrievable. In 29 cases (56.9%), Perl's stain was positive for iron pigment within the hepatocytes with 17 (58.6%) of these being Grade 1, 7 (24.1%) Grade 2, and 5 (17.2%) Grade 3. Shikata orcein revealed hepatitis B viral surface antigen in 15 (29.4%) of the cases while copper-associated protein was demonstrable in 6 (11.8%) of the cases. The discovery of stainable iron implies some degree of disturbance of iron metabolism, and a Grade 3 stainable iron requires investigation for genetic hemochromatosis. The demonstration of copper-associated proteins suggests biliary disease in a noncirrhotic liver which also requires further investigation.

Conclusion: This study confirms the need to routinely perform special stains in reporting liver biopsies to fully investigate and manage patients and their relatives.

MeSH terms

  • Adolescent
  • Adult
  • Aged
  • Aged, 80 and over
  • Biopsy / methods*
  • Child
  • Child, Preschool
  • Coloring Agents*
  • Copper / analysis
  • Female
  • Hepatitis B Surface Antigens / analysis
  • Humans
  • Infant
  • Iron / analysis
  • Liver / pathology*
  • Liver Diseases / pathology*
  • Male
  • Middle Aged
  • Nigeria
  • Retrospective Studies
  • Staining and Labeling*
  • Young Adult

Substances

  • Coloring Agents
  • Hepatitis B Surface Antigens
  • Copper
  • Iron