trigeminal cave

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tri·gem·i·nal cave

[TA]
the cleft in the meningeal layer of dura of the middle cranial fossa near the tip of the petrous part of the temporal bone; it encloses the roots of the trigeminal nerve and the trigeminal ganglion.
Farlex Partner Medical Dictionary © Farlex 2012

trigeminal cave

An evagination of the cerebellar tentorium near the apex of the petrous part of the temporal bone, which is formed from two layers of the dura mater and contains CSF. It follows the fifth nerve and envelops the proximal end of the trigeminal ganglion.

Dural boundaries:
• Superolateral—Cerebellar tentorium;
• Superomedial—Lateral wall of the cavernous sinus;
• Medial—Clivus;
• Inferolateral—Posterior petrous face of temporal bone.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

tri·gem·i·nal cave

(trī-jem'i-năl kāv) [TA]
The cleft in the meningeal layer of dura of the middle cranial fossa near the tip of the petrous part of the temporal bone; it encloses the roots of the trigeminal nerve and the trigeminal ganglion.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Meckel,

Johann Friedrich, the elder, German anatomist and obstetrician, 1714-1774.
Meckel band - the portion of the anterior ligament of the malleus that extends from the base of the anterior process through the petrotympanic fissure, to attach to the spine of the sphenoid. Synonym(s): Meckel ligament
Meckel cave
Meckel cavity - Synonym(s): Meckel space
Meckel ganglion - a small parasympathetic ganglion in the upper part of the pterygopalatine fossa. Synonym(s): pterygopalatine ganglion
Meckel ligament - Synonym(s): Meckel band
Meckel space - the cleft in the meningeal layer of dura of the middle cranial fossa that encloses the roots of the trigeminal nerve and the trigeminal ganglion. Synonym(s): Meckel cavity; trigeminal cave
Meckel sphenopalatine ganglionectomy

Meckel,

Johann Friedrich, the younger, German anatomist and embryologist, 1781-1833.
Meckel cartilage - a temporary supporting structure in the embryonic mandible. Synonym(s): mandibular cartilage
Meckel diverticulum - the remains of the yolk stalk of the embryo.
Meckel-Gruber syndrome - a malformation syndrome. Synonym(s): dysencephalia splanchnocystica; Meckel syndrome
Meckel plane - a craniometric plane cutting the alveolar and the auricular points.
Meckel scan - use of technetium-99m pertechnetate in a scan of the gastric mucosa to detect ectopic gastric mucosa in Meckel diverticulum.
Meckel syndrome - Synonym(s): Meckel-Gruber syndrome
Medical Eponyms © Farlex 2012
References in periodicals archive ?
After the afferent fibers converges from three main sensory roots of the nerve ([V.sub.1], [V.sub.2] and [V.sub.3]) the main trunk of trigeminal nerve enters throught porus terminus, an opening into the dura mater while entering the Meckel's cave. From this point, the nerve carries it dural covering with it and the myelin sheath surrounding the nerve transitions from that derived from Schwann cells to that derived from oligodendrocytes, and this point of transition from peripheral to central myelin is referred as transition zone and the point where nerve enters pons is called as root entry point or zone (REZ) (24) (Figure 1).
Infrequently, inflammatory lesions effect the cavernous sinus and Meckel's cave is also seen.
By definition, petrous apex cephalocele is the cystic expansion and herniation of the posterolateral portion of Meckel's cave into the superomedial portion of petrous apex.
CVA was ruled out; however bone marrow lesions involving the left and the right clivus, right Meckel's cave, and posterior margin of the right cavernous sinus were noted (Figure 1).
The cisternal segment of CN V crosses the cisternal space and enters the Meckel's cave through the porus trigeminus (Figure 1).
Magnetic Resonance Imaging revealed hyperintensity in T1 axial flair and T2 weighted images in both mastoid air cells and petrous apex involving Dorello's canal and Meckel's cave area on right side.
Baseline cranial contrast enhanced MRI detected a nonspecific inflammatory granulomatous lesion in the right cavernous sinus extending basally towards the right trigeminal cave (Meckel's cave) and anteriorly towards the apex of the right orbit.
The occurrence rate of ICCs accounts for approximately 4% of all the skull base chordomas.[sup][2],[4] They mostly locate in the prepontine region, rarely in the intrasellar, suprasellar, pterional region, pineal, dorsum sellae, Meckel's cave, cerebellum, hypothalamus, tentorium cerebella, and foramen magnum.
The mandibular division of the trigeminal nerve (V3) lies external to the cavernous sinus and exits through foramen ovale vertically oriented beneath Meckel's cave. Bilateral Meckel's caves are inferolateral to each of the cavernous sinuses.
The Gasserian ganglion and the proximal sensory and motor roots are enclosed in a dural envelope, which forms Meckel's cave (Kruger & Young, 1981).
Gradenigo syndrome (Gradenigo-Lannois Syndrome) was described in 1907 by Giuseppe Gradenigo when he reported a triad of symptoms characterised by periorbital unilateral pain due to trigeminal nerve involvement at Meckel's cave, diplopia due to involvement of abducens nerve in Dorello's canal and persistent otorrhoea of involved ear.