ABSTRACT
Images 12-6 and 12-7 A subacute organizing infarct is characterized by a virtual sea of macrophages that replace the brain parenchyma (Image 12-6). Macrophages dominate for a few weeks to a few months after the injury. Eventually, reactive astrocytes predominate as the macrophages disappear (Image 12-7; arrows). Reactive astrocytes appear around one week after the insult, gradually increase in prominence and are characterized by their abundant eosinophilic cytoplasm.
