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  • subdural hematoma
Related terms:
hematoma
subarachnoid hemorrhage
intracranial hemorrhage
cerebral hemorrhage
Pathologic Function
subdural hemorrhage
sub·du·ral hem·or·rhage
Subclass of:
Traumatic intracranial hemorrhage; Intracranial Hemorrhage; Hematoma
Definitions related to hematoma, subdural:
  • (subdural hematoma) A blood clot in the brain between the cerebral cortex and the dura.
    Harvard Dictionary of Health Terms
    Harvard Medical Publishing, 2011
  • (subdural hematoma) A collection of blood between the dura mater and the brain.
    NCI
    U.S. National Cancer Institute, 2021
  • (subdural hematoma) A collection of blood into the space between the dura mater and the brain.
    NICHD Pediatric Terminology
    U.S. National Cancer Institute, 2021
  • 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.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • (subdural hemorrhage) Bleeding between the dura mater and the brain, usually secondary to a tear of the bridging vein.
    NCI
    U.S. National Cancer Institute, 2021
  • (subdural hemorrhage) Hemorrhage occurring between the dura mater and the arachnoid mater.
    Human Phenotype Ontology (HPO)
    The Human Phenotype Ontology Project, 2025
  • A subdural hematoma (SDH) is a collection of blood below the inner layer of the dura but external to the brain and arachnoid membrane (see the images below). Subdural hematoma is the most common type of traumatic intracranial mass lesion.
    Medscape
    WebMD, 2025
  • Subdural hematoma is a collection of blood between the dural and arachnoid coverings of the brain. As the volume of the hematoma increases, the intracranial pressure may rise and cause herniation. While the presence of subdural hematoma can be inferred by neurologic decline and mechanism of traumatic injury, the diagnosis is typically...
    Epocrates
    Athenahealth, Inc., 2019
  • Subdural hematoma, bleeding into the space between the brain and its outermost protective covering, the dura. It typically results when a traumatic force applied to the head creates significant fast-changing velocities of the contents inside the skull. The expanding hemorrhage can increase the...
    Encyclopedia Britannica
    Encyclopedia Britannica, Inc., 2025
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This content should not be used in place of medically-reviewed decision support reference material or professional medical advice. Some terms may have alternate or updated definitions not reflected in this set. The definitions on this page should not be considered complete or up to date.

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