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Cerebral venous sinus thrombosis

Sunday, 07 March 2010 20:37

Cerebral venous sinus thrombosis (CVST) is a rare form of stroke that results from thrombosis (a blood clot) of the dural venous sinuses, which drain blood from the brain. Symptoms may include headache, abnormal vision, any of the symptoms of stroke such as weakness of the face and limbs on one side of the body, and seizures. The diagnosis is usually by computed tomography (CT/CAT scan) or magnetic resonance imaging (MRI) employing radiocontrast to demonstrate obstruction of the venous sinuses by thrombus.

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Glioma

Saturday, 06 March 2010 19:53

A glioma is a type of tumor that starts in the brain or spine. It is called a glioma because it arises from glial cells. The most common site of gliomas is the brain.

Gliomas are classified by cell type, by grade, and by location.

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Arachnoid cyst

Arachnoid cysts are cerebrospinal fluid covered by arachnoidal cells and collagen that may develop between the surface of the brain and the cranial base or on the arachnoid membrane, one of the three membranes that cover the brain and the spinal cord. Arachnoid cysts are a congenital disorder, and most cases begin during infancy; however, onset may be delayed until adolescence.

arachnoid cyst

Meningioma

Meningiomas are the second most common primary tumor of the central nervous system, arising from the arachnoid "cap" cells of the arachnoid villi in the meninges. These tumors are usually benign in nature; however, they can be malignant.

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Subdural hematoma

Sunday, 15 November 2009 16:00

A subdural haematoma (subdural hematoma) or subdural hemorrhage (SDH) is a form of traumatic brain injury in which blood gathers within the inner meningeal layer of the dura matter (the outer protective covering of the brain). Usually resulting from tears in veins that cross the subdural space, subdural hemorrhages may cause an increase in intracranial pressure (ICP), which can cause compression of and damage to delicate brain tissue. Acute subdural hematoma (ASDH) has a high mortality rate and is a severe medical emergency.

subdural hematoma