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Neck
Published in Harold Ellis, Adrian Kendal Dixon, Bari M. Logan, David J. Bowden, Human Sectional Anatomy, 2017
Harold Ellis, Adrian Kendal Dixon, Bari M. Logan, David J. Bowden
This section passes through the junctional zone between the falx cerebri, separating the occipital lobes of the brain (32), the falx cerebelli, separating the lobes of the cerebellum (30) and the tentorium cerebelli, which roofs the cerebellum. The straight sinus (31) is seen in section as it lies in the line of the junction of the falx cerebri and the tentorium cerebelli. The transverse sinus (37) lies in the attached margin of the tentorium cerebelli.
Test Paper 7
Published in Teck Yew Chin, Susan Cheng Shelmerdine, Akash Ganguly, Chinedum Anosike, Get Through, 2017
Teck Yew Chin, Susan Cheng Shelmerdine, Akash Ganguly, Chinedum Anosike
An irregular appearance of the sinus with multiple intrasinus channels and dural collateral vessels on MRV is characteristic of incomplete recanalisation. Complete recanalisation occurs more often in superior sagittal and straight sinus thrombosis than transverse and sigmoid sinuses after anticoagulation therapy.
Head, neck and vertebral column
Published in David Heylings, Stephen Carmichael, Samuel Leinster, Janak Saada, Bari M. Logan, Ralph T. Hutchings, McMinn’s Concise Human Anatomy, 2017
David Heylings, Stephen Carmichael, Samuel Leinster, Janak Saada, Bari M. Logan, Ralph T. Hutchings
Venous sinuses - veins within the skull formed by a double layer of dura mater normally located where dural folds meet the bones of the skull (Figs.3.1, 3.3, 3.4). The superior sagittal sinus (in the superior edge of the falx cerebri) runs posteriorly below the midline of the cranial vault to the confluence of sinuses. Most of the blood normally flows to the right, becoming the right transverse sinus, which in turn runs down as the right sigmoid sinus to pass through the jugular foramen on the right and emerging inferior to the skull as the right internal jugular vein. The straight sinus receives the inferior sagittal sinus (lying in the lower edge of the falx cerebri) and the great cerebral vein and runs posteriorly to the confluence of sinuses at the junction of the falx cerebri and tentorium cerebelli. Most of this blood normally flows to the left as the left transverse sinus, which continues as the left sigmoid sinus and, via the left jugular foramen, becomes the left internal jugular vein. The paired cavernous sinuses lie on either side of the pituitary gland and body of the sphenoid bone.
Pathogenesis and Management of Acute Necrotizing Encephalopathy
Published in Expert Review of Neurotherapeutics, 2023
Ningxiang Qin, Jing Wang, Xi Peng, Liang Wang
The differential diagnosis between ANE and viral encephalitis is based on CSF analysis, as encephalitis patients frequently exhibit an evident increase in cerebrospinal fluid cells [72]. Acute disseminated encephalomyelitis (ADEM) typically manifests as elliptical to circular patchy lesions mainly involving the white matter, with asymmetric cortical and subcortical lesions observable on brain MRI [73]. In cases of cerebral venous thrombosis, after employing contrast-enhanced MRI and MRV, the patency of intracranial veins and the straight sinus can be verified to rule out this condition, which can also result in increased intracranial pressure and cerebral edema [71]. Wernicke’s encephalopathy is clearly linked to thiamine deficiency [74]. Leigh syndrome is a slowly progressive neurodegenerative disorder that may be hereditary and frequently presents with familial occurrence [70]. Toxic encephalopathy and inherited metabolic diseases are more commonly involved in the caudate and putamen [72].
Dural venous sinus stenting in patients with idiopathic intracranial hypertension: report of outcomes from a single-center prospective database and literature review
Published in Expert Review of Ophthalmology, 2022
Matthew J Kole, Juan Carlos Martinez-Gutierrez, Francisio Sanchez, Rosa Tang, Peng Roc Chen
The overall purpose of this review is to systematically examine the previous literature regarding cerebral venous sinus stenting. In addition, we present data from a prospectively maintained database from our institution as an example of presenting signs, symptoms, and outcomes. The remainder of this manuscript will turn its attention thusly. The human cerebral venous drainage is most commonly conceptualized as ‘superficial’ and ‘deep.’ The former is eventually drained via the superior sagittal sinus (SSS), while the latter is drained via the straight sinus. These two structures meet at the torcula Herophili, which is then emptied by the transverse sinuses. The final common drainage pathway for the majority of cerebral venous outflow is via the transverse and sigmoid sinuses, which become the internal jugular vein upon exiting the skull. Patients may also have a single dominant transverse and sigmoid sinus.
The outcome of the vein of Galen aneurysmal malformation cases diagnosed prenatally
Published in Journal of Obstetrics and Gynaecology, 2022
Gurcan Turkyilmaz, Resul Arisoy, Sebnem Turkyilmaz, Emre Erdogdu, Altug Semiz
A total of six foetuses with VGAM, who underwent foetal neurosonography were retrieved during the study period. The mean maternal age was 30.7 ± 5.4 years. The mean gestational age at diagnosis was 31.1 ± 5.1 weeks. The mean size of VGAM was 29.2 ± 5.2 × 26.4 ± 3.3 mm. Straight sinus dilatation was present in all cases. Ventriculomegaly was detected in five of six (83.3%) cases. The mean ventricular width was 12.2 ± 3.1 mm. Foetal neurosonography revealed intracranial haemorrhage in five cases. Grade 3 intracranial haemorrhage was detected in three foetuses, and Grade 4 intracranial haemorrhage was seen in two cases. Cardiomegaly or tricuspid valve regurgitation was present in four of six (66.6%) cases. Hydrops fetalis was detected in two cases (case 3 and case 5).