Subdural hematoma

Subdural hematoma
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Subdural hematoma: Bleeding into the space between the dura (the brain cover) and the brain itself. This space is called the subdural space.

Subdural Hematoma
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Subdural Hematoma
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Subdural hematomas can also occur after a very minor head injury, especially in the elderly. These may go unnoticed for many days to weeks, and are called "chronic" subdural hematomas.

A subdural hematoma (SDH) is a collection of blood that clots in the subdural region of the brain. This region is a space between the brain and the skull. The pooling of blood puts pressure on the brain.

Acute Subdural Hematoma
Overview, Causes, & Risk Factors
Symptoms & Signs
Diagnosis & Tests
Prevention & Expectations
Treatment & Monitoring
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Chronic subdural hematoma
Definition
A chronic subdural hematoma is an "old" collection of blood and blood breakdown products between the surface of the brain and its outermost covering (the dura).

Chronic subdural hematoma
Alternate Names : Subdural hemorrhage - chronic, Subdural hematoma - chronic, Subdural hygroma
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A subdural hematoma is more common in the elderly because of normal brain shrinkage that occurs with aging. This shrinkage stretches and weakens the bridging veins. These veins are more likely to break in the elderly, even after a minor head injury.

An acute subdural hematoma is an accumulation of blood, or a hematoma, inside the skull. It is located between the dura, the fibrous covering of the brain, and the brain itself.

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Subdural Hematoma: a blood clot that forms between the dura and the brain tissue. If this bleeding occurs quickly it is called an acute subdural hematoma. If it occurs slowly over several weeks, it is called a chronic subdural hematoma.

subdural hematoma
Subdural hematomas occur when a blood clot forms underneath the skull and underneath the dura, but outside of the brain.

Subdural hematoma
This occurs when blood vessels — usually veins — rupture between your brain and the outermost of three membrane layers that cover your brain (dura mater).

Subdural hematomas are collections of blood between the dura mater and the pia-arachnoid mater. Acute subdural hematomas arise from laceration of cortical veins or avulsion of bridging veins between the cortex and dural sinuses.

Subdural Hematoma
When force is applied to the head, bridging veins that cross through the subdural space (sub=beneath +dura= one of the meninges that line the brain) can tear and bleed.

Subdural hematoma: A subdural hematoma is located beneath the dura mater (sub=below), between it and the arachnoid mater. Blood in this space is able to dissipate into a larger space because there are no septae limiting the blood flow.

Subdural hematoma-A localized accumulation of blood, sometimes mixed with spinal fluid, in the space between the middle (arachnoid) and outer (dura mater) membranes covering the brain.

Subdural hematomas occur between the brain's dura and the middle layer of the brain, called the arachnoid layer. Frequently these are caused by trauma to the brain that has resulted in loss of consciousness, seizures or concussions.

Subdural hematomas are most often caused by head injury, when rapidly changing velocities within the skull may stretch and tear small bridging veins. Subdural hematomas due to head injury are described as traumatic.

Subdural hematoma Symptoms, Diagnosis, Treatments and Causes - WrongDiagnosis.com
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Subdural hematoma - This is a collection of blood between the coverings of the brain and its surface. It occurs when a head injury tears any of the large veins that carry blood away from the brain's surface.

Subdural Hematoma
Other TBI Terms
In addition to the traumatic diagnoses listed above, there are some terms often used when discussing the care of a head injured patient which can help in the understanding of these clinical conditions: ...

My subdural hematoma started with headaches which I don't normally suffer with, these became worse over weeks, I then started to see a prism at both sides of my vision, like looking through a kaleidoscope, ...

Definition A subdural hematoma is a collection of blood in the space between the outer and middle layers of the covering of the brain. It is most often caused by torn, bleeding veins as a result of a head trauma.

Subdural hematoma
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Individuals who sustain a subdural hematoma may present with a variety of physical and cognitive disabilities, depending on when the hematoma is detected.

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De Souza M, Moncure M, Lansford T, et al; Nonoperative management of epidural hematomas and subdural hematomas: is it safe in lesions measuring one centimeter or less? J Trauma. 2007 Aug;63(2):370-2. [abstract] ...

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This may lead to pressure being placed on the brain and most notably in the form of epidurals and subdural hematomas.

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Sudden forehead pain accompanied by numbness or weakness of the legs, especially when it occurs on only one side of the body, can be a sign of stroke, meningitis, intracranial hemorrhage, or subdural hematoma.

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A subdural hematoma is a collection of blood on the surface of the brain. Cerebral contusions are bruises on the brain, usually caused by a direct, strong blow to the head.

Epidural means outside the dura. An accumulation of blood outside the dura is an epidural hematoma. Subdural means under the dura. A bleed under the dura may result in a subdural hematoma.

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See also: Injury, Symptom, Bleeding, Injuries, Trauma