Liver: ultrastructure and reaction for cytochrome oxidase. Fig 8: COX reaction product stains mitochondrial envelope and cristae. 4 parenchymal cells have different levels of mitochondrial reaction. Peroxisomes are dark round bodies (arrows), they stand out in the hepatocyte without COX reaction; here mitochondrial numbers appear increased. Patient 1.
Roels et al. BMC Clinical Pathology 2009 9:4 doi:10.1186/1472-6890-9-4