File:IPLab3BrainInfarction5b.JPG|This is a higher-power photomicrograph of the previous image showing that the inflammatory cells area of healed/healing infarction (arrowsI) are primarily macrophages and more normal brain parenchyma (B). In the infarcted area contains numerous microglia which (brain macrophages) that have phagocytosed dead brain cell debris that are called "gitter cells". In the dead more normal brain tissuethere are several enlarged astrocytes. These activated astrocytes are often seen in areas of healing and they are called "gemistocytic astrocytes".File:IPLab3BrainInfarction6b.JPG|This is a photomicrograph of infarcted brain tissue adjacent to the area with numerous macrophages (microglia) that are full of infarction. There are numerous activated gemistocytic astrocytes brain tissue - gitter cells (arrows).File:IPLab3BrainInfarction7b.JPG|This is a photomicrograph of the edge of brain tissue adjacent to the infarct. The macrophages There are numerous enlarged activated astrocytes that are full often seen in areas of brain tissue (“gitter cells”) are at the top of the image healing - gemistocytic astrocytes (arrows) and the brain parenchyma containing gemistocytic astrocytes is at the bottom.