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Free Content The Meckel's Cave: What Hides Within?

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The Meckel's cave is a dural recess in the posteromedial portion of the middle cranial fossa and is the location of the trigeminal ganglion. Disease processes that affect the Meckel's cave may lead to symptoms of trigeminal neuralgia. The Meckel's cave can represent a site of primary pathology or an area to which disease processes extend. The anatomy of the Meckel's cave is detailed through the use of drawings with correlative MR imaging. A number of pathologic entities that affect the Meckel's cave are presented and range from congenital conditions (eg, petrous apex cephaloceles, ruptured dermoid cysts, epidermoid tumors) to inflammatory and granulomatous conditions (eg, neurosarcoidosis and Tolosa-Hunt syndrome). Benign and malignant tumors (eg, schwannomas, meningiomas, metastatic lesions) as well as vascular conditions, Glycerol rhizotomy, and uncommon processes (eg, amyloidomas and Lyme disease) are also reviewed.

Learning Objective: To list the disease processes that affect the Meckel's cave and describe each entity's radiographic appearance.
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Keywords: CISS = constructive interference in steady state; CSF = cerebrospinal fluid; FLAIR = fluid attenuated inversion recovery; MC = Meckel's cave; T1WI = T1-weighted image; T2WI = T2-weighted image

Document Type: Research Article

Publication date: January 1, 2016

More about this publication?
  • Neurographics is the peer-reviewed, bimonthly educational journal of the American Society of Neuroradiology. The journal comprises articles selected from material presented at the ASNR Annual Meeting. Neurographics also publishes other high-quality submissions that are primarily educational and have a high emphasis on a pictorial approach. Neurographics offers CME credit for reading review articles and completing quiz-based self-assessment activities. CME credit for review articles may be claimed up to 3 years after an article's publication date. Visit https://members.asnr.org/webcast/content/course_list.asp?src=Neurographics to view all available CME courses.
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