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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.
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.
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.
Dr. Resnick's MSK Conference
Learn directly from the MSK Master himself.
Lower Extremities MRI Conference
Musculoskeletal Imaging
Emergency 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.
Emergency Call Prep
Prepare trainees to be on call for the emergency department with this specialized training series.
1 topic, 1 min.
19 topics, 1 hr. 35 min.
Clinical Scenario 1: Orbital Trauma/Inflammation Introduction
2 m.Case: Anterior Segment Ocular Injury
9 m.Ocular Injury & Globe Anatomy
6 m.Case: Choroidal Detachment, Retinal Detachment, Vitreous Hemorrhage, Orbital Floor Fracture
9 m.Orbit: Foreign Body
8 m.Orbit: Non-Accidental Trauma with Retinal Hemorrhage
3 m.Early Ocular Intervention
6 m.Non-Ocular Orbital Trauma
3 m.Case: Orbital Wall Fracture
8 m.Case: Medial Orbital Wall Fracture
8 m.Case: Orbital Apex and Roof Fracture
5 m.Orbital Blow-Out Fractures
6 m.Orbital Trauma
5 m.Indications for Surgery
4 m.Case: Orbital Cellulitis with Subperiosteal Abscess
6 m.Orbital Inflammation
5 m.Pediatric Subperiosteal Abscess
4 m.Orbital Pseudotumor and Carotid Cavernous Fistula
7 m.Orbital Trauma/Inflammation Lesson Reinforcement Quiz
29 topics, 1 hr. 34 min.
Clinical Scenario 2: Facial/Neck Trauma Introduction
6 m.Case: Comminuted Nasal Bone Fracture
2 m.Case: Multiple Fractures in Nasal Bones
3 m.Nasal Bone Fracture Summary
3 m.Mandibular Fractures
6 m.Case 9 - Displaced Mandibular Fracture at the Angle
3 m.Midface Buttresses
3 m.Naso-Orbito-Ethmoid (NOE) Fractures
5 m.Case: NOE Fracture
3 m.Case: Midface NOE Fracture
3 m.Le Fort Fractures
7 m.Case: Bilateral Le Fort 1 & 2 Fractures
4 m.Case: Bilateral Le Fort 1, Unilateral Le Fort 2 & 3
4 m.Le Fort Summary
1 m.Zygomaticomaxillary Complex (ZMC) Fractures
5 m.Case: Zygomaticomaxillary Complex Fracture
3 m.ZMC Summary
2 m.Capo de Tutti Fractures
5 m.Case: Bilateral Temporal Bone Fractures
9 m.Temporal Bone Fractures
2 m.Complications of Temporal Bone Injury
3 m.Temporal Bone Fracture Summary
3 m.Case: Calvarial Fracture with Transverse Sinus Injury
3 m.Case: Carotid Dissection with Pseudoaneurysm
5 m.Case: Bilateral Carotid Dissections
4 m.Case: Horner's Syndrome, MS, Dissection
5 m.Case: Horner's Syndrome
5 m.Airway Injury & Carotid Dissection
4 m.Facial/Neck Trauma Lesson Reinforcement Quiz
12 topics, 46 min.
Clinical Scenario 3: Sore Throat Pain and Fever Introduction
1 m.Tonsillitis, Tonsillar Abscess & Peritonsillar Abscess
6 m.Case: Peritonsillar Abscess
5 m.Case: Peritonsillar Phlegmon
6 m.Case: Epiglottitis, Supraglottitis, Airway Compromise
7 m.Periodontal Disease
9 m.Case: Ludwig's Angina
3 m.Ludwig's Angina - Summary
3 m.Case: Ludwig's Angina, Sialadenitis
4 m.Lemierre's Syndrome
2 m.Malignant Otitis Externa & Otomastoiditis
6 m.Sore Throat Pain and Fever Lesson Reinforcement Quiz
12 topics, 42 min.
Clinical Scenario 4: Mass in the Neck Introduction
4 m.Case: T-Cell Lymphoma, Lymphadenopathy
4 m.Retropharyngeal Space
3 m.Case: Retropharyngeal Abscess
4 m.Case: Retropharyngeal Phlegmon
3 m.Retropharyngeal Space Collections
4 m.Neck Mass in Afebrile Patient
7 m.Case: Second Branchial Cleft Cyst
4 m.Case: Thyroglossal Duct Cyst
5 m.Case: Sarcoma of the Levator Scapulae
2 m.Thyroid Nodules
9 m.Mass in the Neck Lesson Reinforcement Quiz
27 topics, 1 hr. 35 min.
Clinical Scenario 5: Cervical Spine Trauma Introduction
7 m.Case: Occipital Condyle Fracture
2 m.Case: Anterior Arch C1 Fracture
6 m.Case: Odontoid Fracture
4 m.Atlanto-Odontoid Distraction
5 m.Odontoid Fractures: Summary
5 m.Atlanto-Odontoid Versus Atlanto-Axial Distractions
4 m.Case 34: Jefferson Fracture on CT, MRI
7 m.Jefferson (Burst) Fracture: Summary
4 m.Fixed Rotatory Subluxation
4 m.Case: Bilateral Jumped Facets
9 m.Unilateral Facet Dislocation with Carotid Dissection
4 m.Hyperextension Injury
4 m.Cervical Spine Flexion Injury
6 m.Case: Transverse Process Fracture
3 m.Case: Unstable Fracture, Two-Column Injury
6 m.Case 30 - Epidural Hematoma Summary
Case: Facet Fracture with Vertebral Artery Occlusion
4 m.Spinal Cord Injury Without Radiographic Abnormalities
4 m.Thoracolumbar AO Spine Injury Score
2 m.Case: Chance Fracture
2 m.Axial Loading Fractures
5 m.Case: Lumbar Transverse Process Fracture
2 m.Lumbar Transverse Process Fractures and Visceral Injury
3 m.Case: Compression Fracture
4 m.Case: Compression Fracture & Stress Injury
3 m.Cervical Spine Trauma Lesson Reinforcement Quiz
9 topics, 28 min.
Clinical Scenario 6: Fever, Back Pain Introduction
2 m.Case: Diskitis-Osteomyelitis
5 m.Diskitis-Osteomyelitis Summary
6 m.Case: Tuberculous Spondylitis with Psoas Abscess
4 m.Case: Spinal Cord Infarct
5 m.Case: Spinal Cord Astrocytoma
2 m.Case: Guillain-Barré Syndrome
2 m.Grisel Syndrome and Calcific Tendinitis of the Longus Colli
6 m.Fever, Back Pain Lesson Reinforcement Quiz
13 topics, 37 min.
Head and Neck Emergencies Introduction
8 m.Case: Fungus Ball
2 m.Fungal Sinusitis Summary
2 m.Allergic Fungal Rhinosinusitis
7 m.Case: Invasive Fungal Sinusitis
4 m.Invasive Fungal Sinusitis Imaging Signs
4 m.Case: Necrotizing Fasciitis
4 m.Necrotizing Fasciitis Summary
2 m.Case: Allergic Fungal Sinusitis with Mucocele
2 m.Epidural Abscess from Sinusitis
3 m.Case: Otomastoiditis with Bezold Abscess
2 m.Case: Sinusitis with Frontal Lobe Abscess
3 m.Head and Neck Emergencies Lesson Reinforcement Quiz
0:00
This is a patient who had a complicated otomastoiditis
0:04
which spread to the scalp.
0:06
You see the opacification of the mastoid air cells,
0:09
which is not all that dramatic.
0:11
Here you have the middle ear opacification as well and the
0:15
tegmen timpani opacification at the top of the temporal bone.
0:20
However, more importantly,
0:21
we see the inflammation that's occurring outside the calvarium.
0:26
And this was a patient who presented with a bezold abscess
0:30
at the inferior aspect of the mastoid air
0:33
cells and then got treatment for that.
0:36
You notice that there is inflammation all the
0:38
way up on the right side of the calvarium,
0:42
extending into the musculature of
0:45
the calvarium on the left side.
0:48
And on the post gadolinium enhanced scan, you see all
0:51
this fascial enhancement necrosis of the skin surface.
0:56
And in point of fact,
0:57
they actually put some drains in there.
0:59
Here's a drain coming into the abscess collection along
1:04
the mastoid region, as well as the occipital bone.
1:08
On the sagittal scan, you can see an inflammatory phlegmon here at
1:14
the C1-C2 junction extending
1:16
from the soft tissues of the scalp.
1:19
I'm going to decrease the size of this so that way we can see
1:23
the full extent in the scalp of necrotic tissue associated
1:28
with the severe otomastoiditis. Now, in this situation,
1:32
one of the things to be concerned about is meningitis
1:37
leading to thrombophlebitis. In this case, as you can see,
1:41
the transverse sinus is much smaller on the one
1:45
side compared to the contralateral side.
1:48
And on the MR venogram, this was confirmed as not showing
1:53
thrombophlebitis or thrombosis of the venous sinus.
Interactive Transcript
0:00
This is a patient who had a complicated otomastoiditis
0:04
which spread to the scalp.
0:06
You see the opacification of the mastoid air cells,
0:09
which is not all that dramatic.
0:11
Here you have the middle ear opacification as well and the
0:15
tegmen timpani opacification at the top of the temporal bone.
0:20
However, more importantly,
0:21
we see the inflammation that's occurring outside the calvarium.
0:26
And this was a patient who presented with a bezold abscess
0:30
at the inferior aspect of the mastoid air
0:33
cells and then got treatment for that.
0:36
You notice that there is inflammation all the
0:38
way up on the right side of the calvarium,
0:42
extending into the musculature of
0:45
the calvarium on the left side.
0:48
And on the post gadolinium enhanced scan, you see all
0:51
this fascial enhancement necrosis of the skin surface.
0:56
And in point of fact,
0:57
they actually put some drains in there.
0:59
Here's a drain coming into the abscess collection along
1:04
the mastoid region, as well as the occipital bone.
1:08
On the sagittal scan, you can see an inflammatory phlegmon here at
1:14
the C1-C2 junction extending
1:16
from the soft tissues of the scalp.
1:19
I'm going to decrease the size of this so that way we can see
1:23
the full extent in the scalp of necrotic tissue associated
1:28
with the severe otomastoiditis. Now, in this situation,
1:32
one of the things to be concerned about is meningitis
1:37
leading to thrombophlebitis. In this case, as you can see,
1:41
the transverse sinus is much smaller on the one
1:45
side compared to the contralateral side.
1:48
And on the MR venogram, this was confirmed as not showing
1:53
thrombophlebitis or thrombosis of the venous sinus.
Report
Faculty
David M Yousem, MD, MBA
Professor of Radiology, Vice Chairman and Associate Dean
Johns Hopkins University
Tags
Temporal bone
Neuroradiology
MRI
Infectious
Head and Neck
Emergency
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