Hosting 728 files, 2951 images, and 4 contributors.

Random Case

Wegener's Granulomatosis
Joseph Junewick, MD FACR
over 8 years ago
Enter A Workflow
Standard2   Academic2

Please choose a workflow. A standard workflow allows you to browse the repository with full case detail; the academic workflow allows you to browse the repository with limited case detail revealed. Double click on the images to launch image viewer.

ARSt Case Repository

Sinonasal Polyposis

Case Detail

Anatomy: Neck-Face
Joseph Junewick, MD FACR
Diagnostic Category: Infectious-Inflammatory
Created: over 11 years ago
Updated: over 10 years ago
Tags: PEDS
Modality/Study Types: CT
Adobe32 PDF Imagej32 ImageJA


Teenager with cystic fibrosis and nasal congestion.

Case Images


Sinonasal polyposis


CT – Coronal noncontrast image demonstrates complete opacification of the paranasal sinuses with soft tissue density extending into the nasal cavity. The osseous demineralization indicates chronic inflammation.


Sinonasal polyposis is a manifestation of allergic sinusitis, a benign process which may be alarming to the radiologist because of its extent and bony distortion. CT commonly demonstrates enlargement of sinus ostia, rounded masses within the nasal cavity, thinning of bony trabeculae, and bony erosion at the skull base.

Corporate Office: 616.363.7272, 3264 North Evergreen Drive, Grand Rapids, MI 49525

Spectrum Health Helen Devos Childrens Hospital GE HealthCare