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Perisylvian syndrome is a rare neurological disease characterized by damage to the sylvian fissure (lateral sulcus), an area in the brain involved in language and speech. The main symptoms are difficulty chewing and swallowing, low muscle tone in the face and tongue, speech and language development disorders, and epilepsy. These symptoms are ...
This may succeed or accompany temporal lobe (uncal) herniation and subfalcian herniation secondary to a supratentorial mass. [ citation needed ] The pathophysiological mechanism is uncertain [ 7 ] but is probably caused by the displacement of the brainstem stretching and tearing perforating branches of the basilar artery to the pons; venous ...
Temporal lobe epilepsy is the most common focal onset epilepsy, and 80% of temporal lobe epilepsy is mesial (medial) temporal lobe epilepsy, temporal lobe epilepsy arising from the inner part of the temporal lobe that may involve the hippocampus, parahippocampal gyrus or amygdala. [2] [11] The less common lateral temporal lobe or neocortical ...
Damage to the inferior left temporal lobe, which is shown in green, is associated with TSA. Transcortical sensory aphasia is caused by lesions in the inferior left temporal lobe of the brain located near Wernicke's area, and is usually due to minor hemorrhage or contusion in the temporal lobe, or infarcts of the left posterior cerebral artery (PCA). [4]
Gerstmann syndrome is a neurological disorder that is characterized by a constellation of symptoms [1] that suggests the presence of a lesion usually near the junction of the temporal and parietal lobes at or near the angular gyrus. Gerstmann syndrome is typically associated with damage to the inferior parietal lobule of the dominant hemisphere ...
A summary of clinical manifestations of each syndrome can be found below, in the section labelled "Clinical presentation". [ citation needed ] The main patterns of polymicrogyria are: perisylvian (61%), generalised (13%), frontal (5%), and parasagittal parieto-occipital (3%) and 11% is associated with gray matter heterotopia ( grey matter is ...
Symptoms of chronic subdural hematomas are usually delayed more than three weeks after injury. [1] If the bleeds are large enough to put pressure on the brain, signs of increased intracranial pressure or brain damage will be present. [3] Other symptoms of subdural hematoma can include any combination of the following: [7]
[10] Hemorrhage into the basal ganglia or thalamus causes contralateral hemiplegia due to damage to the internal capsule. [7] Other possible symptoms include gaze palsies or hemisensory loss. [7] Intracerebral hemorrhage into the cerebellum may cause ataxia, vertigo, incoordination of limbs and vomiting. [7]