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Meningioma seen at autopsy, as a tumor of the dura mater extending into the cranial cavity, and can be detached from the bone along with the rest of the dura mater. Small tumors (e.g., < 2.0 cm) usually are incidental findings at autopsy without having caused symptoms. Larger tumors may cause symptoms, depending on the size and location.
Other less common causes of chiasmal syndrome are metabolic, toxic, traumatic, inflammatory or infectious in nature (eg. lymphoid hypophysitis, sarcoidosis.) [1] Compression of the optic chiasm is associated with pituitary adenoma, [11] Craniopharyngioma, [12] Meningioma [13] etc.
These lesions can be caused by trauma to the neck, occlusion of the spinal artery, tumors, disc compression, vitamin B12 deficiency, syphilis, or multiple sclerosis. [3] Despite these numerous pathological pathways, the result is an interruption in transmission of sensory information and motor commands from the brain to the periphery.
The causes of frontal lobe disorders can be closed head injury. An example of this can be from an accident, which can cause damage to the orbitofrontal cortex area of the brain. [2] Cerebrovascular disease may cause a stroke in the frontal lobe. Tumours such as meningiomas may present with a frontal lobe syndrome. [11]
Various kinds of tumors, usually primary and benign, are represented in the pathology. Lesions in the area of cerebellopontine angle cause signs and symptoms secondary to compression of nearby cranial nerves, including cranial nerve V (trigeminal), cranial nerve VII (facial), and cranial nerve VIII (vestibulocochlear). The most common ...
Neurofibromatosis type II (also known as MISME syndrome – multiple inherited schwannomas, meningiomas, and ependymomas) is a genetic condition that may be inherited or may arise spontaneously, and causes benign tumors of the brain, spinal cord, and peripheral nerves. The types of tumors frequently associated with NF2 include vestibular ...
Spinal nerve compression and weakening of the vertebral structure cause the symptoms. Pain is the most common symptom at presentation. [ 1 ] [ 3 ] [ 7 ] Other common symptoms of spinal cord compression include muscle weakness, sensory loss , numbness in hands and legs, and rapid onset paralysis .
Cerebral edema is a severe complication of acute brain injuries, most notably ischemic stroke and traumatic brain injuries, and a significant cause of morbidity and mortality. [ 3 ] [ 10 ] [ 34 ] Cerebral edema is the cause of death in 5% of all patients with cerebral infarction and mortality after large ischemic strokes with cerebral edema is ...