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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.
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Unlock access to our full Course Library and all self-paced Fellowships.
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Get access to free live lectures, every week, from top radiologists.
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Dr. Resnick's MSK Conference
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Lower Extremities MRI Conference
Musculoskeletal Imaging
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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.
Lesson
Orbital Imaging Protocols
4 topics, 10 min.
Lesson
Orbit Anatomy
10 topics, 19 min.
Lesson
Case Review - Ocular Pathology
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.Lesson
Case Review - Intraconal Pathology
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.Lesson
Case Review - Conal Lesions
5 topics, 16 min.
Lesson
Case Review - Extraconal Injuries and Abnormalities
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.Lesson
Case Review - Orbital Appendage Pathology
6 topics, 19 min.
0:00
The lacrimal gland is the second of the orbital
0:04
appendages after the lacrimal sac.
0:07
The lacrimal gland may be involved by any number of
0:10
diseases, and we usually separate them into epithelial
0:14
lesions, versus lymphoproliferative lesions
0:18
versus congenital lesions.
0:21
Let's start with the lymphoproliferative lesions
0:24
and/or granulomatous diseases. In this case,
0:27
we have a patient who has sarcoidosis.
0:30
And what I see, in the evaluation of this patient,
0:33
is enlargement of the left lacrimal gland,
0:37
compared to the normal position and size of the right
0:41
lacrimal gland.
0:42
It has heterogeneous density to it.
0:46
This is noted here,
0:47
laterally in the left side of the orbit.
0:52
Sarcoidosis most commonly affects the uveal tract, which,
0:56
as you recall, includes the ciliary body, the iris,
1:00
and the choroid.
1:01
However, the next most common involved organ of
1:06
the orbit is the lacrimal gland.
1:08
Sarcoidosis may also affect the extraocular muscles and
1:12
cause enlargement, and it also may cause sinusitis.
1:16
And therefore, involvement of the extraconal space.
1:21
You note that, in this case, the inflammation from the
1:25
lacrimal gland extends to the superior
1:28
orbit and into the intraconal space.
1:31
This is another of the complications of sarcoidosis in the orbit,
1:35
where one can have infiltration of the retrobulbar fat.
Sarcoidosis of the Lacrimal Gland
HIDEInteractive Transcript
0:00
The lacrimal gland is the second of the orbital
0:04
appendages after the lacrimal sac.
0:07
The lacrimal gland may be involved by any number of
0:10
diseases, and we usually separate them into epithelial
0:14
lesions, versus lymphoproliferative lesions
0:18
versus congenital lesions.
0:21
Let's start with the lymphoproliferative lesions
0:24
and/or granulomatous diseases. In this case,
0:27
we have a patient who has sarcoidosis.
0:30
And what I see, in the evaluation of this patient,
0:33
is enlargement of the left lacrimal gland,
0:37
compared to the normal position and size of the right
0:41
lacrimal gland.
0:42
It has heterogeneous density to it.
0:46
This is noted here,
0:47
laterally in the left side of the orbit.
0:52
Sarcoidosis most commonly affects the uveal tract, which,
0:56
as you recall, includes the ciliary body, the iris,
1:00
and the choroid.
1:01
However, the next most common involved organ of
1:06
the orbit is the lacrimal gland.
1:08
Sarcoidosis may also affect the extraocular muscles and
1:12
cause enlargement, and it also may cause sinusitis.
1:16
And therefore, involvement of the extraconal space.
1:21
You note that, in this case, the inflammation from the
1:25
lacrimal gland extends to the superior
1:28
orbit and into the intraconal space.
1:31
This is another of the complications of sarcoidosis in the orbit,
1:35
where one can have infiltration of the retrobulbar fat.
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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