MeSH

A collection of blood outside the BLOOD VESSELS. Hematoma can be localized in an organ, space, or tissue.

A rare epidural hematoma in the spinal epidural space, usually due to a vascular malformation (CENTRAL NERVOUS SYSTEM VASCULAR MALFORMATIONS) or TRAUMA. Spontaneous spinal epidural hematoma is a neurologic emergency due to a rapidly evolving compressive MYELOPATHY.

Year introduced: 2005

Subdural hematoma of the SPINAL CANAL.

Year introduced: 2005

Accumulation of blood in the SUBDURAL SPACE over the CEREBRAL HEMISPHERE.

Year introduced: 2005

Accumulation of blood in the SUBDURAL SPACE with delayed onset of neurological symptoms. Symptoms may include loss of consciousness, severe HEADACHE, and deteriorating mental status.

Year introduced: 2000

Accumulation of blood in the SUBDURAL SPACE with acute onset of neurological symptoms. Symptoms may include loss of consciousness, severe HEADACHE, and deteriorating mental status.

Year introduced: 2000

Accumulation of blood in the SUBDURAL SPACE between the DURA MATER and the arachnoidal layer of the MENINGES. This condition primarily occurs over the surface of a CEREBRAL HEMISPHERE, but may develop in the spinal canal (HEMATOMA, SUBDURAL, SPINAL). Subdural hematoma can be classified as the acute or the chronic form, with immediate or delayed symptom onset, respectively. Symptoms may include loss of consciousness, severe HEADACHE, and deteriorating mental status.

Accumulation of blood in the EPIDURAL SPACE between the SKULL and the DURA MATER, often as a result of bleeding from the MENINGEAL ARTERIES associated with a temporal or parietal bone fracture. Epidural hematoma tends to expand rapidly, compressing the dura and underlying brain. Clinical features may include HEADACHE; VOMITING; HEMIPARESIS; and impaired mental function.

Year introduced: 2005 (1966)

An atypical form of AORTIC DISSECTION in which subintimal dissection of the aortic TUNICA MEDIA without initial laceration of the aortic TUNICA INTIMA. It may begin from a rupture of the VASA VASORUM feeding aortic media.

Year introduced: 2023

Bleeding into one or both CEREBRAL HEMISPHERES due to TRAUMA. Hemorrhage may involve any part of the CEREBRAL CORTEX and the BASAL GANGLIA. Depending on the severity of bleeding, clinical features may include SEIZURES; APHASIA; VISION DISORDERS; MOVEMENT DISORDERS; PARALYSIS; and COMA.

Year introduced: 2000

Bleeding into structures of BRAIN STEM, including the MIDBRAIN; PONS; or MEDULLA OBLONGATA, as the result of CRANIOCEREBRAL TRAUMA. DIFFUSE AXONAL INJURY is commonly associated. Clinical manifestations may include OCULAR MOTILITY DISORDERS; ATAXIA; PARALYSIS; PERSISTENT VEGETATIVE STATE; and COMA.

Year introduced: 2000

Bleeding within the SKULL induced by penetrating and nonpenetrating traumatic injuries, including hemorrhages into the tissues of CEREBRUM; BRAIN STEM; and CEREBELLUM; as well as into the epidural, subdural and subarachnoid spaces of the MENINGES.

Year introduced: 2000

Intracranial bleeding into the PUTAMEN, a BASAL GANGLIA nucleus. This is associated with HYPERTENSION and lipohyalinosis of small blood vessels in the putamen. Clinical manifestations vary with the size of hemorrhage, but include HEMIPARESIS; HEADACHE; and alterations of consciousness.

Year introduced: 2000

Bleeding within the subcortical regions of cerebral hemispheres (BASAL GANGLIA). It is often associated with HYPERTENSION or ARTERIOVENOUS MALFORMATIONS. Clinical manifestations may include HEADACHE; DYSKINESIAS; and HEMIPARESIS.

Year introduced: 2000