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For Private Practices
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Emergency Call Prep
Prepare trainees to be on call for the emergency department with this specialized training series.
42 topics, 2 hr. 16 min.
Introduction to Intradural Extramedullary Lesions
4 m.Standard MRI Pulse Sequences for Evaluating Spinal Lesions
3 m.Cystic Lumbar Schwanoma
4 m.Lumbar Spine Solid Schwanoma vs. Meningioma
3 m.Cervical Spine Plexiform Neurofibroma in a Patient with NF1
6 m.Intradural Extramedullary Lesion Differential Diagosis
3 m.Nerve Sheath Tumors of the Spine
5 m.Neurofibromatosis Type 2
4 m.Neurofibromatosis Type 1
4 m.Spinal Meningiomas
5 m.Thoracic Spine Meningioma
4 m.Calcified Meningioma
3 m.Cervical Spine Meningioma
4 m.Cervical Spine Meningioma, Atypical Location
4 m.Spinal Hemangioblastomas
3 m.Multiple Hemangioblastomas, Von Hippel Lindau
4 m.Myxopapillary Ependymoma
4 m.Spinal Paraganglioma
2 m.Differential Diagosis of Intradural Metastasis
10 m.Subarachnoid Seeding from Medulloblastoma
4 m.Subarachoid Seeding in a Breast Cancer Patient
3 m.Spinal Lymphoma
2 m.Congenital and Developmental IDEM Cysts
8 m.Neurenteric Cysts
4 m.Transdural Herniation of the Spinal Cord
3 m.Spinal Arachoid Cyst
3 m.Prominent Transdural Herniation of the Spinal Cord
2 m.Fat Containing Spine Lesions
4 m.Lumbar Spine Lipoma
2 m.Pediatric Lumbar Lipoma and a Congenital Malformation
3 m.Lipoma vs. Fatty Infiltration of the Filum
3 m.Congenital Dural Ectasia
3 m.Dural Ectasia
2 m.Dural Arteriovenous Fistula Type 1
4 m.Dural AVF vs. Normal Variation
5 m.Review of Dural AVF Types II, III, and IV
3 m.IDEM Infectious and Inflammatory Abormalities
6 m.Guillian Barre Syndrome
3 m.Chronic Inflammatory Demyelinating Polyradiculoneuropathy
3 m.CIDP Causing Cauda Equina Syndrome
3 m.CIDP Causing Brachial Plexopathy
3 m.Indradural Extramedullary Processes - Conclusion
2 m.0:01
In considering intradural extramedullary processes,
0:05
the neoplastic category really predominates in the
0:09
pathology that we see on a day to day basis.
0:12
And those neoplasms that are in the intradural
0:15
extramedullary space are dominated by neurogenic tumors,
0:19
with schwannomas more common than neurofibromas
0:22
and the meningiomas. So, benign conditions.
0:26
There are a number of congenital
0:27
lesions that we discussed,
0:28
including cystic lesions, be it arachnoid cyst,
0:32
neurenteric cyst,
0:34
epidermoid cysts and dermoid cysts, as well as lesions
0:39
that contain fat, as in lipomas or fatty infiltration of
0:43
the filum or lipomeningoceles, or lipomyelomeningoceles.
0:48
Overall, with respect to the infectious etiologies,
0:52
this will be dominated by viral infections and they may
0:56
be manifested by polyneuropathies or polyradiculopathies.
1:01
The vascular malformations are pretty uncommon,
1:04
but what we see in the intradural extramedullary
1:07
space generally are enlarged veins.
1:10
As a manifestation of the most common of these,
1:13
the dural-based, arteriovenous fistula.
1:17
As I said,
1:18
we usually are dealing with benign conditions in the
1:20
intradural extramedullary space, as opposed to the
1:24
neoplasms that may occur in the spinal cord itself.
1:29
So I appreciate your attention,
1:31
and thank you once again.
Interactive Transcript
0:01
In considering intradural extramedullary processes,
0:05
the neoplastic category really predominates in the
0:09
pathology that we see on a day to day basis.
0:12
And those neoplasms that are in the intradural
0:15
extramedullary space are dominated by neurogenic tumors,
0:19
with schwannomas more common than neurofibromas
0:22
and the meningiomas. So, benign conditions.
0:26
There are a number of congenital
0:27
lesions that we discussed,
0:28
including cystic lesions, be it arachnoid cyst,
0:32
neurenteric cyst,
0:34
epidermoid cysts and dermoid cysts, as well as lesions
0:39
that contain fat, as in lipomas or fatty infiltration of
0:43
the filum or lipomeningoceles, or lipomyelomeningoceles.
0:48
Overall, with respect to the infectious etiologies,
0:52
this will be dominated by viral infections and they may
0:56
be manifested by polyneuropathies or polyradiculopathies.
1:01
The vascular malformations are pretty uncommon,
1:04
but what we see in the intradural extramedullary
1:07
space generally are enlarged veins.
1:10
As a manifestation of the most common of these,
1:13
the dural-based, arteriovenous fistula.
1:17
As I said,
1:18
we usually are dealing with benign conditions in the
1:20
intradural extramedullary space, as opposed to the
1:24
neoplasms that may occur in the spinal cord itself.
1:29
So I appreciate your attention,
1:31
and thank you once again.
Report
Description
Faculty
David M Yousem, MD, MBA
Professor of Radiology, Vice Chairman and Associate Dean
Johns Hopkins University
Tags
Vascular
Trauma
Syndromes
Spine
Non-infectious Inflammatory
Neuroradiology
Neoplastic
Musculoskeletal (MSK)
Metabolic
MRI
Infectious
Idiopathic
Iatrogenic
Drug related
Congenital
Acquired/Developmental
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