Arachnoid granulation | Radiology Reference Article - Radiopaedia.org
Jul 19, 2024 · Arachnoid granulations, also known as Pacchionian granulations, are projections of the arachnoid membrane (villi) into the dural sinuses that allow CSF to pass from the subarachnoid space into the venous system.
Aberrant arachnoid granulations | Radiology Reference Article ...
Nov 8, 2024 · Aberrant arachnoid granulations, also known as arachnoid pits, are arachnoid granulations that penetrated the dura but failed to migrate normally in the venous sinus. They are most often located in the greater wing of the sphenoid bone and may be seen in idiopathic intracranial hypertension.
Incidental optic nerve sheath arachnoid cyst: A rare case finding …
The histological and ultramicroscopic studies find cellular layers identical to the arachnoid tissue and cerebrospinal fluid secretion capacities revealing the morphological and functional similarities that arachnoid cysts share with arachnoid granulations.
Reversible giant arachnoid granulations | Neurology
Dec 10, 2018 · Axial T2-weighted image shows optic nerve tortuosities (arrowheads, A). Axial (B) and frontal (C) postcontrast T1-weighted imaging and magnetic resonance venography (D) reveal giant arachnoid granulations (GAG) (asterisks) and sinus lumen stenosis (arrows, B).
Architecture of arachnoid trabeculae, pillars, and septa in the ...
Aims: To describe the anatomy and the arrangement of the arachnoid trabeculae, pillars, and septa in the subarachnoid space of the human optic nerve and to consider their possible clinical relevance for cerebrospinal fluid dynamics and fluid ...
Microanatomical study of arachnoid granulations and meningeal ...
Feb 9, 2023 · Arachnoid granulations are also present around the trochlear (IV) and oculomotor (III) nerves and posterior to the mandibular nerve (V3). II, optic nerve; V, trigeminal nerve; VI, abducens nerve; APCF, anterior petroclinoid fold (ligament); ICA, internal carotid artery.
The intracranial arachnoid mater | Child's Nervous System - Springer
Sep 8, 2012 · The arachnoid mater is a delicate and avascular layer that lies in direct contact with the dura and is separated from the pia mater by the cerebrospinal fluid-filled subarachnoid space. The subarachnoid space is divided into cisterns named according to surrounding brain structures.
Characterization of cytoskeletal and junctional proteins expressed …
Oct 13, 2005 · The arachnoid granulations (AGs) are projections of the arachnoid membrane into the dural venous sinuses. They function, along with the extracranial lymphatics, to circulate the cerebrospinal fluid (CSF) to the systemic venous circulation.
The Role of Arachnoid Granulations and the Glymphatic System …
May 22, 2020 · In this review, we aim to discuss the recent evidence that sheds light upon the role of arachnoid granulations and the glymphatic system in the development of venous sinus stenosis and IIH (Fig. 1.).
Arachnoid granulation - Wikipedia
Arachnoid granulations (also arachnoid villi, and pacchionian granulations or bodies) are small outpouchings of the arachnoid mater and subarachnoid space into the dural venous sinuses of the brain. The granulations are thought to mediate the draining of cerebrospinal fluid (CSF) from the subarachnoid space into the venous system .