Training Collections
Musculoskeletal Imaging
Emergency Imaging
PET Imaging
Pediatric Imaging
Training Collections
Musculoskeletal Imaging
Emergency Imaging
PET Imaging
Pediatric Imaging
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: 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
26 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: 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: 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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