scholarly journals Malignant Middle Cerebral Artery Infarction Due to Hyponatremia Following Traumatic Brain Injury: A Case Report

2019 ◽  
Vol 20 ◽  
pp. 258-262
Author(s):  
Chompunut Asavaaree ◽  
Jenny Mao ◽  
Amanpreet Kaur ◽  
Saksith Smithason
Author(s):  
Arpit Parmar ◽  
G. S. Kaloiya ◽  
Harsimarpreet Kaur

Temporal lobes are one of the four major lobes of the cerebral cortex and perform a complex array of interrelated functions. They play an important role in various day-to-day functioning. The common pathologies leading to isolated temporal lobe dysfunction are infarction (of the middle cerebral artery), hemorrhage, seizures, tumors, encephalitis, and traumatic brain injury. Temporal lobe syndromes include a wide array of various neurological (Kluver-Bucy syndrome, Geschwind Gastaut syndrome, etc.), elementary (e.g., vertiginous syndromes, hallucinations, etc.), neuropsychiatric (e.g., anxiety, agitation, aggression, etc.), and cognitive (e.g., Korsakoff amnesia, cortical deafness, etc.) disorders. The presentation depends on a multitude of factors including involvement of dominant or non-dominant lobe. Left temporal lobe involvement usually leads to various forms of aphasia while right side involvement leads to more covert and varied syndromes. In this chapter, the authors discuss the anatomy of the temporal lobe, its functional aspects, and various syndromes of temporal lobe dysfunction.


2021 ◽  
Author(s):  
Pedro Henrique Souza Reis ◽  
Mozart Guanaes Gomes Neto ◽  
Mauro Eduardo Jurno ◽  
Renata Souza dos Santos

Context: The azygos anterior cerebral artery (azygos-ACA) is a rare variant that involves a common trunk in segment A2 (above the anterior communicating artery). Its prevalence is 0.3–2%. Case report: Male patient, 59 years old, diabetic, smoker, with congenital heart disease (long congenital QT) was admitted to the hospital on 01/07/2020 with traumatic brain injury followed by a seizure crisis (1st episode). Upon admission, he had Glasgow 13 and a cranial tomography showing small left frontal hemorrhage, then conservative treatment with phenytoin 100mg every 8 hours was initiated. The following day, there was a decrease in the level of consciousness (Glasgow 7), with orotracheal intubation being performed and a new skull tomography was performed revealing a slightly enlarged left frontal contusion area, right subdural hematoma, bifrontal hypodensity and left caudate nucleus. Mannitol (100ml / 6h) was indicated and phenytoin (100mg/ 8h) was maintained. On 16/07/2020, the cranial angiotomography showed hypoflow of the anterior cerebral artery and an anatomical variant showing that such artery emerged from a single trunk. The next day, he was still intubated, with Glasgow 6 and no interaction with an examiner. Conclusions: It is concluded that the patient had a bifrontal ischemic stroke (evidenced by the 2nd tomography) and this, occurred due to an obstruction of the azygos-ACA (rare variant), explaining its bilaterality. This situation led to traumatic brain injury, syncope and a severe decrease in the level of consciousness. Given the possible repercussions, the anatomical recognition of this variant becomes important.


2013 ◽  
Vol 8 (5) ◽  
pp. E26-E26 ◽  
Author(s):  
Aidin Meshksar ◽  
Golnzaz Yadollahi Khales ◽  
Afshin Borhani-Haghighi

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