Occult temporal lobe encephalocoele into the transverse sinus

Dural Venöz Sinüsler ya da Kalvarum İçerisine Beyin Herniasyonlarının Tespitinde Yüksek Rezolüsyonlu 3T MRG Yararı

“…BHVSC is usually detected in the posteroinferior parts of the brain parenchyma and the cerebellum. In previous studies and most of the case series, the most common BHVSC locations were transverse sinuses (TS) and the occipital bone, while the herniated brain parenchyma was reported as the temporal and occipital lobe or cerebellar hemisphere, similar to our study (1,9,(12)(13)(14).…”

Brain Herniation into Arachnoid Granulations: Clinical and Neuroimaging Features

“…Prior to the large systematic study published by Battal et al in 2015, there were only a small number of case series and case reports in the English literature . Battal et al reviewed a total of 6,160 brain MRIs, identifying a total of 21 herniations into the calvarium or dural venous sinuses in 20 patients, establishing a prevalence of 0.32%.…”

“…Prior to the large systematic study published by Battal et al 11 in 2015, there were only a small number of case series and case reports in the English literature. 2,4,5,9,10,[13][14][15][16][17] Battal et al 11 reviewed a total of 6,160 brain MRIs, identifying a total of 21 herniations into the calvarium or dural venous sinuses in 20 patients, establishing a prevalence of 0.32%. Battal et al 11 postulated that these occult herniations could occur spontaneously, secondary to transient intracranial pressure shifts, or due to preexisting AGs or penetrating veins that weakened the dura at the herniation site.…”

“…Recently, herniation of brain parenchyma into the dural venous sinuses and calvarium have been reported, sometimes referred to as occult encephaloceles, as the herniation does not extend through the outer cortex of the calvarium or skull base . While it remains to be proven, the association of the herniation with presumed preexisting AGs has been suggested in prior reports.…”

“…[5][6][7][8][9][10][11][12][13][14] Recently, herniation of brain parenchyma into the dural venous sinuses and calvarium have been reported, sometimes referred to as occult encephaloceles, as the herniation does not extend through the outer cortex of the calvarium or skull base. [2][3][4][9][10][11][12][15][16][17] While it remains to be proven, the association of the herniation with presumed preexisting AGs has been suggested in prior reports. Some authors have suggested that the abnormality occurs spontaneously, 2,10,11 while others have postulated that intracranial hypertension could be a predisposing condition.…”