What is "backfill"? Get his phenomenon explained in roughly 1 minute 

Backfill anybody? Now you know!
Backfill is a specific finding on MRI of the sacroiliac joints seen in axial spondyloarthritis.
This short clip was taken from a presentation I gave at an online workshop for rheumatologists and radiologists from Saudi Arabia and the Gulf region. Guests also came from Mexico, Colombia, and Brazil.
Learn more about axial spondyloarthritis in our BerlinCaseViewer app!
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#axSpA #rheumatology #mri #radiology