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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.
Continuing Medical Education (State CME)
Complete all of your state CME requirements in one convenient place.
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.
Case Crunch: Rapid Case Review (Free)
Register for free live board reviews.
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.
Compliance
NewTrack, fulfill, and report on all your radiologists' credentialing and licensing requirements.
Emergency Call Prep
Prepare trainees to be on call for the emergency department with this specialized training series.
Paranasal Sinus
Paranasal Sinus Anatomy and Imaging Protocol
14 topics, 56 min.
Introduction to Paranasal Sinus
1 m.Sinonasal CT and MR Protocol
4 m.Sinonasal Drainage
4 m.Mucociliary Clearance
4 m.Current Surgical Procedures in the Sinonasal Channels
4 m.Posterior Ethmoid Surgical Procedures
2 m.Neurovascular Structures in the Paranasal Sinus
3 m.Anatomic Variation in the Paranasal Sinus Part 1
6 m.Anatomic Variation in the Paranasal Sinus Part 2
7 m.Paranasal Sinus Anatomy on CT
8 m.Keros Classification
5 m.Keros Classification on CT
5 m.Normal Post-op Findings in the Paranasal Sinus and Complications
8 m.Post-op Orbital Complications
3 m.Paranasal Sinus
Inflammatory Disease
32 topics, 1 hr. 47 min.
Acute Sinusitis
5 m.Acute Bacterial Sinusitis
4 m.Chronic Sinusitis
6 m.Chronic Sinusitis on CT
7 m.MR in Inflammation
7 m.Hyperdense Sinus
6 m.Fungal Sinusitis
3 m.Nasal Congestion in a 36-Year-Old
3 m.Fungus Ball in the Sphenoid Sinus
2 m.Fungus Ball in the Maxillary Sinus
2 m.Allergic Fungal Sinusitis
4 m.Invasive Fungal Sinusitis
5 m.Sinonasal Fungus Disease
7 m.Rhinosinusitis Classification
2 m.Identifying Complications of Sinusitis
5 m.Subperiosteal Abscess of the Orbit
4 m.Mucocele in the Sphenoid Sinus
2 m.Mucocele Summary
5 m.Intracranial Complications of Sinusitis
4 m.Pott's Puffy Tumor
2 m.Epidural Abscess
3 m.Epidural Abscess on MRI
3 m.Vascular Complications of Sinusitis
3 m.Sinus Thrombosis
3 m.Maxillary Sinusitis Silent Sinus Syndrome Summary
3 m.Polyps Summary
2 m.Polyps on CT
3 m.Polyposis with Mucocele
4 m.Polyposis on MRI
2 m.Antrochoanal Polyp, Odontogenic Sinusitis
3 m.Organizing Hematoma
2 m.Silent Sinus Syndrome
4 m.Paranasal Sinus
Neoplastic Disease
21 topics, 1 hr. 6 min.
Paranasal Benign Neoplasms
3 m.Mucous Retention Cysts and Frontal Ethmoidal Osteoma
2 m.Benign Chondroma of the Nasal Septumn
1 m.Inverted Papilloma Features
5 m.Inverted Papilloma on MRI
2 m.Pleomorphic Adenoma
2 m.Sinus Malignancies
5 m.Squamous Cell Carcinoma
4 m.Squamous Cell Carcinoma Summary
6 m.Sinus Malignancy Rule
7 m.Melanoma
2 m.MSG Tumor, Adenoid Cystic Carcinoma
8 m.Paranasal Sinus Sarcomas
4 m.Undifferentiated Sarcoma of the Sinonasal Cavity
3 m.Chondrosarcoma
3 m.Sinonasal Undifferentiated Carcinoma SNUC
4 m.Sinonasal Undifferentiated Carcinoma on MRI
2 m.Esthesio / Olfactory Neuroblastoma
2 m.Esthesioneuroblastoma
2 m.Olfactory Neuroblastoma
2 m.Kadish System Grading of Olfactory Neuroblastoma
6 m.Paranasal Sinus
Miscellaneous Lesions of the Paranasal Sinus
10 topics, 22 min.
0:00
This is a pathologically proven
0:03
sphenoid sinus, inverted papilloma.
0:06
It highlights the problem of distinguishing
0:09
between benign neoplasms of the
0:11
perinasal sinuses and malignancies.
0:14
Here we see on the T2-weighted scan a mass
0:17
that has bright and dark areas within the
0:22
sphenoid sinus.
0:23
You can see the extension into the
0:25
pterygoid air cell of the right sphenoid sinus.
0:28
It's dark in signal intensity. On T1-weighted
0:31
scan, relatively homogeneously intermediate in
0:35
signal intensity, and on the post-gadolinium
0:38
enhanced scan, it shows avid contrast enhancement.
0:41
There's no way for me to know whether
0:43
this is a small cell neuroendocrine
0:46
tumor or whether this is a lymphoma,
0:50
or whether this is what it turned out to be,
0:53
histopathologically, an inverted papilloma.
0:56
Maybe on this T2-weighted image, we might suggest
0:59
that there is a cerebriform appearance to it,
1:02
but this is not a perfect example of cerebriform,
1:07
brain-like appearance on T2-weighted scanning.
1:11
Most malignant neoplasms are going to
1:14
be dark in signal intensity on T2,
1:16
intermediate signal intensity on T1,
1:19
and showing avid contrast enhancement, just
1:22
like this sphenoid sinus inverted papilloma.
1:27
Now, could this inverted papilloma
1:28
have squamous cell carcinoma in it?
1:30
It could, and I would have no way of knowing that.
Inverted Papilloma on MRI
HIDEInteractive Transcript
0:00
This is a pathologically proven
0:03
sphenoid sinus, inverted papilloma.
0:06
It highlights the problem of distinguishing
0:09
between benign neoplasms of the
0:11
perinasal sinuses and malignancies.
0:14
Here we see on the T2-weighted scan a mass
0:17
that has bright and dark areas within the
0:22
sphenoid sinus.
0:23
You can see the extension into the
0:25
pterygoid air cell of the right sphenoid sinus.
0:28
It's dark in signal intensity. On T1-weighted
0:31
scan, relatively homogeneously intermediate in
0:35
signal intensity, and on the post-gadolinium
0:38
enhanced scan, it shows avid contrast enhancement.
0:41
There's no way for me to know whether
0:43
this is a small cell neuroendocrine
0:46
tumor or whether this is a lymphoma,
0:50
or whether this is what it turned out to be,
0:53
histopathologically, an inverted papilloma.
0:56
Maybe on this T2-weighted image, we might suggest
0:59
that there is a cerebriform appearance to it,
1:02
but this is not a perfect example of cerebriform,
1:07
brain-like appearance on T2-weighted scanning.
1:11
Most malignant neoplasms are going to
1:14
be dark in signal intensity on T2,
1:16
intermediate signal intensity on T1,
1:19
and showing avid contrast enhancement, just
1:22
like this sphenoid sinus inverted papilloma.
1:27
Now, could this inverted papilloma
1:28
have squamous cell carcinoma in it?
1:30
It could, and I would have no way of knowing that.
Report
Faculty
David M Yousem, MD, MBA
Professor of Radiology, Vice Chairman and Associate Dean
Johns Hopkins University
Mahla Radmard, MD
Postdoctoral Research Fellow
Johns Hopkins University School of Medicine
Tags
Sinus
Sinonasal Cavity
Oncologic Imaging
Neuroradiology
Neoplastic
MRI
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