The subdural space interpreted as a cellular layer of meninges

Frederickson, Richard G.

doi:10.1002/ar.1092300105

Cited by 62 publications

(35 citation statements)

References 21 publications

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“…The subdural space was reported to occur in a specific cell layer of flattened fibroblasts. Frederickson found that the number of cells varied with location and were consistent with the dural border cells described by Nabeshima et al 13 Haines described periosteal and meningeal dural layers. 17 Modified fibroblasts with no organized junctional complexes were seen beneath the meningeal layer.…”

Section: Subdural Hematoma Anatomysupporting

confidence: 81%

“…39 Frederickson reported that separation of the dura and arachnoid was easily performed in a guinea pig model. 13 He found that before separation the dura and arachnoid were in contact and after separation the arachnoid's outer surface was irregular with cytoplasmic debris and disrupted cell membranes. The subdural space was reported to occur in a specific cell layer of flattened fibroblasts.…”

Section: Subdural Hematoma Anatomymentioning

confidence: 99%

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Acute subdural hematoma from bridging vein rupture: a potential mechanism for growth

Miller

Nader

2014

JNS

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Most acute subdural hematomas (ASDHs) develop after rupture of a bridging vein or veins. The anatomy of the bridging vein predisposes to its tearing within the border cell layer of the dura mater. Thus, the subdural hematoma actually forms within the dura. The hematoma grows by continued bleeding into the border cell layer. However, the venous pressure would not be expected to cause a large hematoma. Therefore, some type of mechanism must account for the hematoma's expansion. Cerebral venous pressure (CVP) has been demonstrated in animal models to be slightly higher than intracranial pressure (ICP), and CVP tracks the ICP as pressure variations occur. The elevation of CVP as the ICP increases is thought to result from an increase in outflow resistance of the terminal portion of the bridging veins. This probably results from a Starling resistor model or, less likely, from a muscular sphincter. A hypothesis is derived to explain the mechanism of ASDH enlargement. Tearing of one or more bridging veins causes these vessels to bleed into the dural border cell layer. Subsequent ICP elevation from the ASDH, cerebral swelling, or other cause results in elevation of the CVP by increased outflow resistance in the intact bridging veins. The increased ICP causes further bleeding into the hematoma cavity via the torn bridging veins. Thus, the ASDH enlarges via a positive feedback mechanism. Enlargement of an ASDH would cease as blood within the hematoma cavity coagulates. This would stop the dissection of the dural border cell layer, and pressure within the hematoma cavity would equalize with that in the torn bridging vein or veins.

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Section: Subdural Hematoma Anatomysupporting

confidence: 81%

Section: Subdural Hematoma Anatomymentioning

confidence: 99%

Acute subdural hematoma from bridging vein rupture: a potential mechanism for growth

Miller

Nader

2014

JNS

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“…There is no naturally occuring biological space at the dura-arachnoid juntion in the calvarial region (11). While the periosteal dura mater was attached tenaciously to the cranial base and includes more extracellular collagen, the meningeal dura mater has less extracellular collagen and the inner aspect, has a special cell layer known as the dural border cell (DBC) layer (8). The arachnoid membrane consists of two different cell layers; the arachnoid barrier cell (ABC) layer, and the arachnoid trabeculea (11).…”

Section: Discussionmentioning

confidence: 99%

Subarachnoid, subdural and interdural spaces at the clival region: an anatomical study.

Ayberk¹,

Özveren²,

Aslan³

et al. 2011

Turkish Neurosurgery

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AIm:We aimed to show the significance of the anterior pontine membrane as a determining structure between the subdural and subarachnoid space in the clival region. mAterIAl and methOds: Five adult cadaver heads and five cerebral hemispheres were used. The skull vault and hemipheres were removed by sectioning through the pontomesencephalic junction. Five other heads hemispheres were removed but the arachnoid membrane was protected and the cerebral side of the clival dura mater was dissected. In another specimen, the dural porus of the abducens nerve was sectioned for histological evaluation. Three cases of hematoma at the clivus were presented to support our findings. results:The anterior pontine membrane is the arachnoid membrane forming the anterior wall of the prepontine cistern with its lateral extension at the skull base. This membrane forms the subdural and subarachnoid spaces by forming a barrier between the clival dura mater and neurovascular structures of the brainstem. There were rigid fibrous trabeculations between both cerebral and periosteal dural layers forming the basilar plexus as the interdural space in the clivus. COnClusIOn:The anterior pontine membrane separates the subdural and subarachnoid spaces at the clival region. The hematomas of the clival region require to be evaluated with consideration given to the existance of the subdural space.KeywOrds: Anterior pontine membrane, Arachnoid, Clivus, Interdural space ÖZ AmAÇ: Bu çalışmada, klival bölgedeki subdural ve subaraknoid mesafenin belirlenmesinde anterior pontin membranın önemini göstermek istedik. yÖntem ve GereÇ: Çalışmada beş yetişkin kadavranın kafatası ve beş serebral hemisfer kullanılmıştır. Kafatası ve hemisferler pontomezensefalik bileşke boyunca kesilerek çıkarılmıştır. Diğer beş hemisfer, araknoid membran korunarak çıkarılmış ve klival duramaterin serebral kısmı diseke edilmiştir. Bir başka spesmende, abdusens siniri dural porusu civarında histolojik kesit almak için kesilmiştir. Bulguları desteklemek için üç klival hematom vakası sunulmuştur.BulGulAr: Anterior pontin membran, prepontin sisternin anterior duvarını oluşturur ve kafa kaidesinin lateraline doğru uzanır. Bu membran, beyin sapının nörovaskuler yapıları ve klival dura dura mater arasında bariyer oluşturarak, subdural ve subaraknoid mesafenin oluşmasını sağlar. Klivusta baziler pleksusu oluşturan serebral ve periostal dural tabakalar arasında rijit fibröz trabekülasyonlar vardı. sOnuÇ: Anterior pontin membran, klival bölgede subdural ve subaraknoid mesafeleri ayırır. Klival bölgedeki hematomların, subdural mesafenin varlığı göz önüne alınarak değerlendirilmesi gerekir.

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“…Separation of the arachnoid mater from the meningeal dura (dura propria) occurred at the dural border cell layer that contains no collagen. 18,23 The meningeal dura was depicted as thinner than the periosteal dura. Allen and Didio 1 observed that, upon separation of the arachnoid from the meningeal dura, the dural border cells layer seldom remains intact as it forms the plane of separation.…”

Section: Dura Matermentioning

confidence: 99%

Dural relationships of Meckel cave and lateral wall of the cavernous sinus

Janjua

Al‐Mefty

Densler

et al. 2008

FOC

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Object The purpose of this study was to elucidate the anatomy of the trigeminal nerve (cranial nerve [CN] V), Meckel cave (MC), and lateral wall of the cavernous sinus (CS). Methods Ten fresh cadaver heads (20 sides) and 2 middle fossa embalmed specimens were removed, decalcified, sectioned, stained, and studied microscopically. Results In the MC, the posterior fossa meningeal dura extended into the middle fossa surrounding CN V. The average medial length of the MC was 16.7 mm and the lateral length was 13.5 mm. The dural roof of MC was thicker than its floor and was covered by a paw-shaped fibrous tissue extending from the tentorium to the ganglion (in 100% of specimens). Between the dural sleeve of the MC and venous space of the CS, a separate fibrous wall could be identified in 45% (9 of 20) extending between the tentorium and the floor of the CS. The mean length of CN V in the MC proximal to the posterior margin of the Gasserian ganglion was 11.8 mm. The mean length of CN V1 was 19.4 mm; V2, 12.3 mm; and V3, 7.4 mm distal to the anterior margin of the ganglion. The periosteal dura followed the bone of the middle fossa and was continuous with the extracranial periosteum. The lateral dural wall of the CS consisted of a medial (membranous) and a lateral wall. The latter was separated into a thin outer layer and a thicker fibrous inner layer that became thinner as it extended posterolaterally. Conclusions The MC is an extension of the posterior fossa dura with intricate relationships with the surrounding dural layers.

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The subdural space interpreted as a cellular layer of meninges

Cited by 62 publications

References 21 publications

Acute subdural hematoma from bridging vein rupture: a potential mechanism for growth

Acute subdural hematoma from bridging vein rupture: a potential mechanism for growth

Subarachnoid, subdural and interdural spaces at the clival region: an anatomical study.

Dural relationships of Meckel cave and lateral wall of the cavernous sinus

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