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Training Collections
Library Memberships
On-demand course library with video lectures, expert case reviews, and more
Fellowship Certificate™ Programs
Practice-focused training programs designed to help you gain experience in a specific subspecialty area.
Ultimate Learning Pass
Unlock access to our full Course Library and all self-paced Fellowships.
Continuing Medical Education (State CME)
Complete all of your state CME requirements in one convenient place.
Noon Conference (Free)
Get access to free live lectures, every week, from top radiologists.
Case of the Week (Free)
Get a free weekly case delivered right to your inbox.
Case Crunch: Rapid Case Review (Free)
Register for free live board reviews.
Dr. Resnick's MSK Conference
Learn directly from the MSK Master himself.
Lower Extremities MRI Conference
Musculoskeletal Imaging
PET Imaging
Pediatric Imaging
For Training Programs
Supplement your training program with case-based learning for residents, registrars, fellows, and more.
For Private Practices
Upskill in high growth, advanced imaging areas.
Compliance
NewTrack, fulfill, and report on all your radiologists' credentialing and licensing requirements.
Emergency Call Prep
Prepare trainees to be on call for the emergency department with this specialized training series.
Lesson
Introduction
1 topic,
Lesson
Meningiomas
15 topics, 59 min.
Case: Assessing Lesion Position
4 m.Intra-Axial vs. Extra-Axial Lesions
3 m.Case: Typical Locations of Meningiomas
3 m.Case: Defining Meningioma
2 m.Case: Meningioma Appearance on MRI
6 m.Case: Meningioma Enhancement
3 m.Case: Meningioma vs. Schwannoma
5 m.Case: Meningiomas in the Posterior Fossa
5 m.Case: Planum Sphenoidale Meningioma with Orbital Apex Extension
4 m.Case: Suprasellar Meningioma
7 m.Case: Optic Nerve Meningioma
6 m.Case: Vascular Encasement of Meningioma With Absent Vasogenic Edema
3 m.Case: Parafalcine Meningioma
6 m.Case: Meningiomatosis
5 m.Case: Solitary Fibrous Tumor
6 m.Lesson
Non-glial Tumors
9 topics, 38 min.
Case: Hemangioblastoma and Von Hippel-Lindau Syndrome
7 m.Case: Recurrent Hemangioblastoma
3 m.Case: Spinal Hemangioblastoma
4 m.Case: VHL Renal Lesions
6 m.Case: Endolymphatic Sac Tumor
3 m.Case: Central Neurocytoma
6 m.Case: Lhermitte-Duclos Disease/Dysplastic Cerebellar Gangliocytoma
6 m.Case: Epidermoid Cyst
4 m.Case: Rhabdomyosarcoma
4 m.Lesson
2021 WHO CNS Tumor Classification
10 topics, 44 min.
Introduction to Glioma Imaging
1 m.Introduction to the 2021 WHO CNS Tumor Classification
5 m.Neuroimaging Techniques For CNS Tumors
13 m.Pediatric Brain Tumors Based on Molecular Genetics: Medulloblastomas
2 m.Pediatric Brain Tumors Based on Molecular Genetics: Ependymomas
6 m.Pediatric Brain Tumors Based on Molecular Genetics: Diffuse Midline Gliomas
4 m.Adult Brain Tumors Based on Molecular Genetics: Solitary Fibrous Tumors and Hemangiopericytoma
2 m.Adult Brain Tumors Based on Molecular Genetics: Circumscribed Gliomas
2 m.Adult Brain Tumors Based on Molecular Genetics: Glioblastomas
3 m.Adult Brain Tumors Based on Molecular Genetics: Diffuse Gliomas
9 m.Lesson
Gliomas
21 topics, 1 hr. 32 min.
IDH-Wildtype Gliomas
8 m.Case: Primary IDH-Wildtype Glioma
3 m.Case: IDH-Wildtype Glioma
6 m.Case: IDH-Wildtype Gliobastoma with Epedymal Extension
7 m.IDH-Mutant Gliomas
9 m.Case: IDH-Mutant Astrocytoma, FLAIR Mismatch, Grade 2
5 m.Case: IDH-Mutant Astrocytoma, Grade 2
3 m.Case: IDH-Mutant Oligodendroglioma, Grade 2
2 m.Case: Oligodendroglioma, Grade 3
3 m.Case: CNS Lymphoma
4 m.H3 and BRAF Gliomas
9 m.Case: H3K27M Midline Glioma, Grade 4
3 m.Case: H3K27 Glioma
3 m.Case: BRAF V600E Tumor
5 m.T2 FLAIR Mismatch Sign of IDH-Mutant Astrocytomas
8 m.Case: T2 FLAIR Mismatch Sign, Astrocytoma – 31 y/o Female
2 m.Case: T2 FLAIR Mismatch Sign, Astrocytoma – 28 y/o Male
1 m.Case: IDH Mutant Astrocytoma, No Mismatch Sign
2 m.Approach to Intra-Axial Tumors: Tumor Mimics, Non-Neoplastic Lesions
12 m.Final Pearls, Pediatric Non-Gliomas
5 m.Summary
2 m.Lesson
Pediatric Brain Tumor Cases
17 topics, 26 min.
Case: Typical Medulloblastoma
2 m.Case: WNT-activated Medulloblastoma
1 m.Case: SHH-activated Medulloblastoma
2 m.Case: Ependymoma
2 m.Case: Posterior Fossa Ependymoma Type B
2 m.Case: Pilocytic Astrocytoma
2 m.Case: Solid Pilocytic Astrocytoma With No Discernible Cyctic Component
3 m.Case: Pilocytic Astrocytoma Within the Fourth Ventricle
2 m.Case: H3K27M Diffuse Midline Glioma With a DIPG Pattern, Grade 4
3 m.Case: Diffuse Midline Glioma With a DIPG Pattern
2 m.Case: Pilocytic Astrocytoma Masked as DIPG
2 m.Case: Embryonal Tumor With Multilayered Rosettes
2 m.Case: Diffuse Midline Glioma With a Bi-thalamic Pattern
2 m.Case: Pilocytic Astrocytoma Arising From the Thalamus
2 m.Case: Diffuse Astrocytoma
1 m.Case: Diffuse Astrocytoma With Apparent Discrete Margins
2 m.Case: Diffuse Astrocytoma With Gliomatosis Cerebri Pattern of Spread
2 m.0:00
So this is sort of a typical case
0:02
of myoblasts in the fourth ventricle.
0:06
Enhances. Now there's some metastatic deposits we see here,
0:10
intracranial, a metastatic deposit
0:12
and a spinal metastatic deposit.
0:16
It fills the fourth ventricle
0:18
and notice it's relatively hyperintense on T two, um,
0:24
that were, that's become gonna be relevant.
0:27
It was also hyperdense on ct that's relevant
0:30
because if you think th these have a high nuclear
0:34
cytoplasmic ratio, so relatively low cytoplasm,
0:37
cytoplasm is fluid, which is bright on T two.
0:39
So less fluid, more cellular, darker on T two,
0:44
less fluid, more cellular, brighter on ct.
0:48
So this is now showing
0:51
that these MR imaging characteristics,
0:53
it's not just different images
0:56
and something's bright, darker, you know,
0:58
but they actually give you an insight into the, um,
1:03
the, you know, microcellular structure
1:06
of these, of these tumors.
1:08
And that can help guide us in figuring out what's going on.
1:13
There's low diffusivity, um, quantitative was six 50, um,
1:18
which is low.
1:19
If we look, re remember that chart from
1:21
before, only medulloblastomas were, um, were at
1:25
that level on that chart.
1:27
So low diffusivity implies a high nucleus cytoplasmic ratio,
1:31
and as I mentioned, the high nucleus cytoplasmic ratio
1:34
corresponds to relative increased density on CT
1:37
and intermediate to hypo intensity appearance
1:39
on T two weight imaging.
1:40
So these are all different things that are related
1:43
and can be explained by the actual, um, uh,
1:48
histopathology of MedU neuroblastoma.
1:52
And the imaging features
1:53
of this overall suggests group three.
1:55
It's a fourth ventricular tumor that's enhancing.
Case: Typical Medulloblastoma
HIDEInteractive Transcript
0:00
So this is sort of a typical case
0:02
of myoblasts in the fourth ventricle.
0:06
Enhances. Now there's some metastatic deposits we see here,
0:10
intracranial, a metastatic deposit
0:12
and a spinal metastatic deposit.
0:16
It fills the fourth ventricle
0:18
and notice it's relatively hyperintense on T two, um,
0:24
that were, that's become gonna be relevant.
0:27
It was also hyperdense on ct that's relevant
0:30
because if you think th these have a high nuclear
0:34
cytoplasmic ratio, so relatively low cytoplasm,
0:37
cytoplasm is fluid, which is bright on T two.
0:39
So less fluid, more cellular, darker on T two,
0:44
less fluid, more cellular, brighter on ct.
0:48
So this is now showing
0:51
that these MR imaging characteristics,
0:53
it's not just different images
0:56
and something's bright, darker, you know,
0:58
but they actually give you an insight into the, um,
1:03
the, you know, microcellular structure
1:06
of these, of these tumors.
1:08
And that can help guide us in figuring out what's going on.
1:13
There's low diffusivity, um, quantitative was six 50, um,
1:18
which is low.
1:19
If we look, re remember that chart from
1:21
before, only medulloblastomas were, um, were at
1:25
that level on that chart.
1:27
So low diffusivity implies a high nucleus cytoplasmic ratio,
1:31
and as I mentioned, the high nucleus cytoplasmic ratio
1:34
corresponds to relative increased density on CT
1:37
and intermediate to hypo intensity appearance
1:39
on T two weight imaging.
1:40
So these are all different things that are related
1:43
and can be explained by the actual, um, uh,
1:48
histopathology of MedU neuroblastoma.
1:52
And the imaging features
1:53
of this overall suggests group three.
1:55
It's a fourth ventricular tumor that's enhancing.
Report
Faculty
Asim F Choudhri, MD
Chief, Pediatric Neuroradiology
Le Bonheur Children's Hospital
Tags
Oncologic Imaging
Neuroradiology
Neoplastic
MRI
Brain
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