Training Collections
Musculoskeletal Imaging
Emergency Imaging
PET Imaging
Pediatric Imaging
Training Collections
Musculoskeletal Imaging
Emergency Imaging
PET Imaging
Pediatric Imaging
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
This is a follow-up to a patient who
0:03
has had an orbital floor fracture.
0:06
The patient has had correction surgically of the orbital floor.
0:11
This is best evaluated in the coronal plane.
0:14
As we scroll the images,
0:17
we see the metallic mesh where the orbital
0:20
floor has been reconstructed.
0:23
I tend to be a little bit more generous with respect to
0:28
the location of the mesh and the natural location
0:31
of the orbital floor with the surgeons.
0:35
So, although this orbital floor is not in the exact
0:39
symmetrical location with the contralateral side,
0:43
it is laid nicely in the orbital floor and reconstructs
0:48
the curvature of the orbital floor.
0:51
You notice that this fracture,
0:53
as with the previous case,
0:55
has involved the infraorbital foramen.
0:58
Now, you may be a little bit concerned about the elevation
1:01
of the plate from the orbital floor as we go
1:06
further posterior. Let me demonstrate that.
1:10
So here is the posterior aspect of the repair
1:14
plate and here is the natural orbital floor.
1:17
And you notice that there is a small gap here.
1:20
Do not alienate your plastic surgeons or oculoplastic
1:24
surgeons with regard to this small deviation from the
1:27
normal course of the orbital floor when you
1:30
compare it with the contralateral side.
1:32
The main benefit of this repair is that the inferior
1:37
rectus muscle and orbital fat has been replaced back
1:41
into the orbit and is no longer herniating through the
1:45
gap in the orbital floor, and that there is near-anatomic
1:50
positioning of the plate in the area of the previous fracture.
Orbital Floor Fracture: Status Post Repair
HIDEInteractive Transcript
0:00
This is a follow-up to a patient who
0:03
has had an orbital floor fracture.
0:06
The patient has had correction surgically of the orbital floor.
0:11
This is best evaluated in the coronal plane.
0:14
As we scroll the images,
0:17
we see the metallic mesh where the orbital
0:20
floor has been reconstructed.
0:23
I tend to be a little bit more generous with respect to
0:28
the location of the mesh and the natural location
0:31
of the orbital floor with the surgeons.
0:35
So, although this orbital floor is not in the exact
0:39
symmetrical location with the contralateral side,
0:43
it is laid nicely in the orbital floor and reconstructs
0:48
the curvature of the orbital floor.
0:51
You notice that this fracture,
0:53
as with the previous case,
0:55
has involved the infraorbital foramen.
0:58
Now, you may be a little bit concerned about the elevation
1:01
of the plate from the orbital floor as we go
1:06
further posterior. Let me demonstrate that.
1:10
So here is the posterior aspect of the repair
1:14
plate and here is the natural orbital floor.
1:17
And you notice that there is a small gap here.
1:20
Do not alienate your plastic surgeons or oculoplastic
1:24
surgeons with regard to this small deviation from the
1:27
normal course of the orbital floor when you
1:30
compare it with the contralateral side.
1:32
The main benefit of this repair is that the inferior
1:37
rectus muscle and orbital fat has been replaced back
1:41
into the orbit and is no longer herniating through the
1:45
gap in the orbital floor, and that there is near-anatomic
1:50
positioning of the plate in the area of the previous fracture.
Report
Description
Faculty
David M Yousem, MD, MBA
Professor of Radiology, Vice Chairman and Associate Dean
Johns Hopkins University
Tags
Trauma
Orbit
Neuroradiology
Neuro
Head and Neck
CT
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