The intracranial arachnoid mater

  title={The intracranial arachnoid mater},
  author={Nimer Adeeb and Aman Deep and Christoph J. Griessenauer and Martin M. Mortazavi and Koichi Watanabe and Marios Loukas and R. Shane Tubbs and Aaron A. Cohen-Gadol},
  journal={Child's Nervous System},
IntroductionThe 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.MethodsThe medical literature on this meningeal layer was reviewed in regard to historical aspects, etymology, embryology, histology, and anatomy with special emphasis on the arachnoid cisterns… 

Arachnoid Membranes: Crawling Back into Radiologic Consciousness

An overview of the history, embryology, histology, anatomy, and normal imaging appearance of these membranes is provided, as well as some examples of their clinical importance.

Arachnoid and dural reflections.

Delineation of Subarachnoid Cisterns Using CT Cisternography, CT Brain Positive and Negative Contrast, and a Three Dimensional MRI Sequence: A Pictorial Review

This pictorial essay reviews the radiological images where the subarachnoid cisterns are delineated in four unique circumstances.

An arachnoid cyst with intracystic hemorrhage. Rare complications of a common CNS lesion

Cases of arachnoid cysts complicated by bleeding required surgical interventions in view of clinical and radiological symptoms of intracranial hypertension.

Anatomical Study of Arachnoid Granulation in Superior Sagittal Sinus Correlated to Growth Patterns of Meningiomas

The anatomical differences between arachnoid granulations in the superior sagittal sinus enables surgeons to predict preoperatively growth patterns, followed by safely achieving the optimal range of parasagittal meningioma resection.

Cognitive Impairment in Children with Arachnoid Cyst of Sylvian Fissure: Does it Justify the Neurosurgical Treatment?

It is described three patients, in which surgery was indicated on the basis of clinical symptoms such as headaches and the size of the cysts, and if cognitive impairments could justify neurosurgical treatment.



The arachnoid and the myth of Arachne.

The discovery of the arachnoid membrane is a relatively recent advance and has an interesting etymology that can be traced to the ancient Greek myth of Arachne.

Anatomy and physiology of the leptomeninges and CSF space.

This chapter describes in detail the normal anatomic structure and physiologic interactions of the cerebrospinal fluid and leptomeningeal space that are critical to the understanding and treatment of leptOMeningeal metastases.

Arachnoid granulations: radiology and anatomy.

Anatomical specimens of the dura, granulations and superior sagittal sinus were studied by injection and dissection techniques to show the relationship of the superior superficial cerebral veins, the lacunae laterales, and the arachnoid granulations.

The cranial meninges: anatomic considerations.

The posterior fossa cisterns.

The cisterns provide a natural pathway through which most operations for intracranial aneurysms, extraaxial brain tumors, and disorders of the cranial nerves are directed and are found to intersect the oculomotor nerves.

The origin of subdural neomembranes. I. Fine structure of the dura-arachnoid interface in man.

It was found that the cranial meninges of humans do not include a subdural space, and there is a complex, tight layer of cells, the interface layer, composed in the innermost portion of the dura mater and the outermost portions of the arachnoid.

Structure of the human arachnoid granulation.

✓ The human arachnoid granulation was studied by light microscopy in gapless serial sections after local postmortem perfusion of the subarachnoid space with glutaraldehyde. The smaller granulations

Agenesis of arachnoid granulations and its relationship to communicating hydrocephalus.

Case 1 is the only known documented case of total agenesis of the Pacchionian system and gives credence to the idea that an impaired reabsorption of cerebrospinal fluid at the level of the PACS system is a cause of hydrocephalus.

The Cranial Arachnoid and Pia Mater in Man: Anatomical and Ultrastructural Observations

Results of the study showed that as the vertebral artery pierced the posterior atlanto-occipital membrane and entered the subarachnoid space, it acquired a leptomeningeal coat as the arachnoids was reflected on to the surface of the cortex as the pia mater.


The fine structure of nine arachnoid cysts was studied to determine the derivation of the cyst's wall from the various components of normal human meanings, and no evidence was found for either a tight sealing of the extracellular spaces in the cySt's wall, nor for the existence of an active transcellular fluid movement.