| Popis: |
Brain hemorrhages have been recognized and recorded in medical literature for more than a century. Today they are classified by type, including primary (spontaneous) hemorrhage, posttraumatic hemorrhage, and hemorrhage secondary to various disease states. Causes of secondary hemorrhage include brain tumors, vascular anomalies such as aneurysmal defects and arteriovenous malformations (AVM), angiopathies, and coagulopathies. Brain hemorrhages also are classified by location: cerebral or supratentorial, cerebellar, and brain stem. Supratentorial hemorrhages may be further divided into either lobular or deep (in the region of the basal ganglia, the internal capsule, and the thalamus). Parenchymal hemorrhage may be accompanied by dissection of blood into the ventricular system (figure 16–1). |
