RT Book, Section A1 Smith, Wade S. A1 Hemphill, III, J. Claude A1 Johnston, S. Claiborne A2 Loscalzo, Joseph A2 Fauci, Anthony A2 Kasper, Dennis A2 Hauser, Stephen A2 Longo, Dan A2 Jameson, J. Larry SR Print(0) ID 1208291656 T1 Intracranial Hemorrhage T2 Harrison's Principles of Internal Medicine, 21e YR 2022 FD 2022 PB McGraw-Hill Education PP New York, NY SN 9781264268504 LK accessmedicine.mhmedical.com/content.aspx?aid=1208291656 RD 2024/10/03 AB Intracranial hemorrhage is a form of stroke (see Chap. 426). Compared to ischemic stroke, patients with intracranial hemorrhage are more likely to present with headache; however, brain imaging is required to distinguish these entities. CT imaging of the head is highly sensitive and specific for intracranial hemorrhage and determines the location(s) of bleeding. Hemorrhages are classified by their location and the underlying vascular pathology. Hemorrhage directly into the brain parenchyma, also known as intracerebral hemorrhage (ICH), and arteriovenous malformations (AVMs) of the brain will be considered here. Other categories of hemorrhage include bleeding into subdural and epidural spaces, usually caused by trauma (Chap 443), and subarachnoid hemorrhage due to trauma or the rupture of an intracranial aneurysm (Chap. 429).