Methods for detection of hepatitis B surface antigen in paraffin sections of liver: a guideline for their use.

Abstract
The light- and electron-microscopic appearances of a liver biopsy from a case of erythrohepatic protoporphyria are compared with the appearances of the liver in griseofulvin-induced porphyria in mice. Crystals are present in hepatocytes and in the bile secretory pathways in each case. The nature and significance of these is discussed.