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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.
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.
4 topics, 10 min.
10 topics, 19 min.
17 topics, 1 hr. 11 min.
Anterior Globe Rupture with Laterally Dislocated Cataract
4 m.Foreign Body in Globe
4 m.Wood Foreign Body and Ocular Hypotony
2 m.Hemmorhage in Both Chambers, Open Globe
3 m.Staphyloma
4 m.Persistent Hyperplastic Primary Vitreous (PHPV)
5 m.Retinal Detachment
3 m.Retinoblastoma on CT
4 m.Retinoblastoma on MRI
9 m.Bilateral Retinoblastoma
7 m.Ocular Pathology - Review
11 m.Endophthalmitis
3 m.PHPV Review, Coloboma, and Staphyloma
5 m.Phthisis Bulbi, Macrophthalmia, and Microphthalmia
4 m.Ocular Calcification
4 m.Retinoblastoma - Review
5 m.Choroidal Melanoma
3 m.15 topics, 1 hr. 8 min.
Intraconal, Conal and Extraconal Anatomy
1 m.Intraconal Hemangioma
5 m.Venous Vascular Malformation
3 m.Optic Nerve Glioma, NF1
4 m.Optic pathway glioma (pilocytic astrocytoma)
4 m.Optic Neuritis, Multiple Sclerosis
6 m.Optic Neuritis, Multiple Sclerosis (2)
7 m.Neuromyelitis Optica Spectrum Disorder
5 m.Neuromyelitis Optica With Spinal Cord Involvement
3 m.Optic Nerve Sheath Meningioma
5 m.Bilateral Optic Neuritis, Leukemia
6 m.Intraconal Pathology - Review
11 m.Optic Neuritis - Review
5 m.Optic Nerve Glioma - Review
4 m.Optic Nerve Sheath Meningioma - Review
6 m.5 topics, 16 min.
18 topics, 55 min.
Extraconal Pathology - Introduction
1 m.Periorbital Cellulitis & Abscess
4 m.Type 3 Orbital Infection
3 m.Solitary Fibrous Tumor
4 m.Langerhans Cell Histiocytosis
2 m.Juvenile Ossifying Fibroma
2 m.Perineural Spread of Squamous Cell Carcinoma
5 m.Proptosis from Extraosseous Extension of Prostate Metastasis
3 m.Orbital Floor Fracture
5 m.Orbital Floor Fracture with Muscle/Fat Herniation
4 m.Orbital Floor Fracture: Status Post Repair
2 m.Bilateral Orbital Fracture Repair
2 m.Periorbital Cellulitis - Review
5 m.Orbital Pseudotumor - Review
3 m.Orbital Wall Abnormalities - Review
3 m.Orbital Fracture - Review
7 m.Giant Cell Reparative Granuloma
3 m.Granulomatous Sinusitis with IgG4-related Ophthalmic Disease
4 m.6 topics, 19 min.
0:00
I show this case as an excellent example of how thyroid
0:04
eye disease or thyroid orbitopathy
0:07
can cause unilateral proptosis.
0:10
Here we have a patient who has left
0:12
sided exophthalmos or proptosis.
0:15
This is also an excellent example of how you
0:18
can have involvement of the muscle belly
0:23
with sparing of the tendinous insertion of the muscle.
0:27
This patient also has lacrimal gland which
0:30
is anteriorly located within the orbit.
0:34
Let's scroll through this a little bit more.
0:36
You can see that the patient has marked enlargement of
0:39
the superior rectus muscle on the left
0:42
side compared to the right side.
0:45
We have increased orbital fat on the left side compared
0:49
to the right side. But note, however,
0:52
that the optic nerve at the optic canal and orbital
0:56
apex still has fat on either side of it,
1:00
and therefore this patient would not necessarily need
1:04
orbital decompression for thyroid eye disease.
1:08
The inferior rectus muscle is markedly enlarged
1:13
on the left side compared to the right side.
1:16
So unilateral exophthalmos associated with thyroid
1:19
orbitopathy without compression of the optic nerve,
1:24
but with demonstration of the lacrimal
1:27
gland being protruded anteriorly.
Interactive Transcript
0:00
I show this case as an excellent example of how thyroid
0:04
eye disease or thyroid orbitopathy
0:07
can cause unilateral proptosis.
0:10
Here we have a patient who has left
0:12
sided exophthalmos or proptosis.
0:15
This is also an excellent example of how you
0:18
can have involvement of the muscle belly
0:23
with sparing of the tendinous insertion of the muscle.
0:27
This patient also has lacrimal gland which
0:30
is anteriorly located within the orbit.
0:34
Let's scroll through this a little bit more.
0:36
You can see that the patient has marked enlargement of
0:39
the superior rectus muscle on the left
0:42
side compared to the right side.
0:45
We have increased orbital fat on the left side compared
0:49
to the right side. But note, however,
0:52
that the optic nerve at the optic canal and orbital
0:56
apex still has fat on either side of it,
1:00
and therefore this patient would not necessarily need
1:04
orbital decompression for thyroid eye disease.
1:08
The inferior rectus muscle is markedly enlarged
1:13
on the left side compared to the right side.
1:16
So unilateral exophthalmos associated with thyroid
1:19
orbitopathy without compression of the optic nerve,
1:24
but with demonstration of the lacrimal
1:27
gland being protruded anteriorly.
Report
Description
Faculty
David M Yousem, MD, MBA
Professor of Radiology, Vice Chairman and Associate Dean
Johns Hopkins University
Tags
Orbit
Non-infectious Inflammatory
Neuroradiology
Neuro
Head and Neck
CT
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