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Supplement your training program with case-based learning for residents, registrars, fellows, and more.
For Private Practices
Upskill in high growth, advanced imaging areas.
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
I wanted to demonstrate this most
0:03
dramatic case that I have seen,
0:06
that is in the differential diagnosis
0:08
of an arachnoid cyst.
0:10
We have the post myelogram CT on either side of
0:14
the T2-weighted scan of the spinal cord.
0:18
On this T2-weighted scan,
0:20
you see that the cord is deviated dramatically anteriorly.
0:23
In fact, the cord is leading to scalloping
0:28
of the mid thoracic vertebrae,
0:31
and there is dilatation of the subarachnoid
0:33
space posteriorly.
0:34
This is another example of probably the most
0:37
dramatic case of transdural herniation of
0:40
the spinal cord that I've seen.
0:41
Here on the sagittal reconstructions
0:44
of the post myelogram CT,
0:47
we have the spinal cord coming up
0:49
here from the lumbar region.
0:51
And then you have the spinal cord being
0:53
deviated and causing scalloping of vertebrae.
0:57
And you have the subarachnoid space
1:00
dilatation, so this cord has herniated through
1:03
the dura, transdural spinal cord herniation
1:07
and subarachnoid space
1:09
dilatation. In this example, was secondary to trauma.
1:14
This is a very unusual complication and
1:17
oftentimes, the trauma is subclinical.
1:19
In other words,
1:19
the patient has had a remote history
1:21
of a motor vehicle collision.
1:23
And we find the patient with a thoracic myelopathy
1:26
months to years later demonstrating this phenomenon.
1:30
So again,
1:31
transdural herniation of the spinal cord.
1:33
The most dramatic example that I've seen.
Interactive Transcript
0:01
I wanted to demonstrate this most
0:03
dramatic case that I have seen,
0:06
that is in the differential diagnosis
0:08
of an arachnoid cyst.
0:10
We have the post myelogram CT on either side of
0:14
the T2-weighted scan of the spinal cord.
0:18
On this T2-weighted scan,
0:20
you see that the cord is deviated dramatically anteriorly.
0:23
In fact, the cord is leading to scalloping
0:28
of the mid thoracic vertebrae,
0:31
and there is dilatation of the subarachnoid
0:33
space posteriorly.
0:34
This is another example of probably the most
0:37
dramatic case of transdural herniation of
0:40
the spinal cord that I've seen.
0:41
Here on the sagittal reconstructions
0:44
of the post myelogram CT,
0:47
we have the spinal cord coming up
0:49
here from the lumbar region.
0:51
And then you have the spinal cord being
0:53
deviated and causing scalloping of vertebrae.
0:57
And you have the subarachnoid space
1:00
dilatation, so this cord has herniated through
1:03
the dura, transdural spinal cord herniation
1:07
and subarachnoid space
1:09
dilatation. In this example, was secondary to trauma.
1:14
This is a very unusual complication and
1:17
oftentimes, the trauma is subclinical.
1:19
In other words,
1:19
the patient has had a remote history
1:21
of a motor vehicle collision.
1:23
And we find the patient with a thoracic myelopathy
1:26
months to years later demonstrating this phenomenon.
1:30
So again,
1:31
transdural herniation of the spinal cord.
1:33
The most dramatic example that I've seen.
Report
Description
Faculty
David M Yousem, MD, MBA
Professor of Radiology, Vice Chairman and Associate Dean
Johns Hopkins University
Tags
Trauma
Spine
Neuroradiology
Musculoskeletal (MSK)
MRI
Acquired/Developmental
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