Brain hemorrhage reason

Cerebral cavernous malformation A cerebral cavernous malformation is an abnormally formed blood vessel, shaped like a small mulberry, which can form in the brain or spinal cord and may result in a wide range of neurological symptoms. Cerebral cavernous malformations (CCMs) are groups of tightly packed, abnormal small blood vessels with thin walls. They may be present in the brain or spinal cord. The vessels contain slow-moving blood that's usually clotted. CCMs, which look like a small mulberry, can create problems in the brain or spinal cord due to leaking of blood in some people. The clusters can vary in size from less than a quarter of an inch (0.6 centimeter) to 3 to 4 inches (7.6 to 10.2 centimeters). CCMs can run in families, but most often they occur on their own. CCMs are one of several types of brain vascular malformations, which contain abnormal blood vessels. Other types of vascular malformations include: • Arteriovenous malformations (AVMs) • Dural arteriovenous fistulas • Developmental venous anomaly (DVA) • Capillary telangiectasias. It's common to have both a DVA and a CCM. CCMs may leak blood and lead to bleeding in the brain or spinal cord (hemorrhage). Brain hemorrhages can cause many signs and symptoms, such as seizures. Depending on the location of the cavernous malformation in a person's nervous system, CCMs can also cause stroke-like symptoms. Bleeding in the spinal cord can cause difficulty with movement or feeling in the legs and sometimes arms, as ...

What is traumatic brain injury? Traumatic brain injury (TBI)happens when a sudden, external, physical assault damages the brain. It is one of the most common causes of disability and death in adults. TBI is a broad term that describes a vast array of injuries thathappen to the brain. The damage can be focal (confined to one area of the brain) or diffuse (happens in more than one area of the brain). The severity of a brain injury can range from a mild concussion to a severe injury that results in coma or even death. What are the different types of TBI? Brain injury mayhappen in one of two ways: • Closed brain injury. Closed brain injurieshappen when there is a nonpenetrating injury to the brain with no break in the skull. A closed brain injury is caused by a rapid forward or backward movement and shaking of the brain inside the bony skull that results in bruising and tearing of brain tissue and blood vessels. Closed brain injuries are usually caused by car accidents, falls, and increasingly, in sports. Shaking a baby can also result in this type of injury (called shaken baby syndrome). • Penetrating brain injury. Penetrating, or open head injurieshappen when there is a break in the skull, such as when a bullet pierces the brain. What is diffuse axonal injury (DAI)? Diffuse axonal injury is the shearing (tearing) of the brain's long connecting nerve fibers (axons) that happens when the brain is injured as it shifts and rotates inside the bony skull. DAI usually causes coma a...