subdural hematoma

subdural hematoma
subdural hematoma n a hematoma that occurs between the dura mater and arachnoid in the subdural space and that may apply neurologically significant pressure to the cerebral cortex

* * *

accumulation of blood between the dura mater and the arachnoid, resulting in the creation of an abnormal space (subdural space, q.v.). In the severe acute form, both blood and cerebrospinal fluid enter the space as a result of laceration of the brain and a tear in the arachnoid, adding subdural compression to the direct injury to the brain. In the chronic form, only blood effuses into the subdural space as a result of rupture of the bridging veins, usually due to closed head injury. The effusion is a gradual process resulting, weeks after the injury, in headache and progressive focal signs that reflect the location of the mass.

Acute focal subdural hematoma of the left frontal area of a six-month-old infant. The layering of subdural blood is due to rapid collection and consists of newly clotted blood and fresh hemorrhage.


Medical dictionary. 2011.

Look at other dictionaries:

  • Subdural hematoma — Infobox Disease Name = PAGENAME Caption = DiseasesDB = 12614 ICD10 = ICD10|I|61|0|i|60, ICD10|S|06|5|s|00 ICD9 = ICD9|852.2 traumatic; ICD9|432.1 nontraumatic ICDO = OMIM = MedlinePlus = 000713 eMedicineSubj = neuro eMedicineTopic = 575 MeshID =… …   Wikipedia

  • subdural hematoma — noun : a hematoma that occurs between the dura mater and arachnoid in the subdural space and that may apply neurologically significant pressure to the cerebral cortex …   Useful english dictionary

  • subdural hematoma — noun A mass of blood formed between the dura and the arachnoid membranes, usually as a result of trauma to the head …   Wiktionary

  • Hematoma subdural — Clasificación y recursos externos CIE 10 I61, S06.5 CIE 9 …   Wikipedia Español

  • hematoma subdural — m. patol. Hematoma localizado en el espacio subdural debido a una hemorragia postraumática en las meninges; produce unos síntomas similares al hematoma extradural. El tratamiento es quirúrgico. Medical Dictionary. 2011. hem …   Diccionario médico

  • Hematoma — Clasificación y recursos externos CIE 10 T14.0 DiseasesDB 5487 …   Wikipedia Español

  • Hematoma — Classification and external resources Hematoma on thigh, 6 days after a fall down stairs, 980 ml of blood drained a few days later ICD 10 T …   Wikipedia

  • subdural — [səb door′əl, səbdyoor′əl] adj. located between the dura mater and the arachnoid membranes of the brain and spinal cord [a subdural hematoma] …   English World dictionary

  • Hematoma — An abnormal localized collection of blood in which the blood is usually clotted or partially clotted and is usually situated within an organ or a soft tissue space, such as within a muscle. A hematoma is caused by a break in the wall of a blood… …   Medical dictionary

  • Subdural space — Infobox Anatomy Name = PAGENAME Latin = spatium subdurale, cavum subdurale GraySubject = 193 GrayPage = 875 Caption = Diagrammatic representation of a section across the top of the skull, showing the membranes of the brain, etc. ( Subdural cavity …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”