Fast Five Quiz: Psoriatic Arthritis Imaging

Herbert S. Diamond, MD

Disclosures

February 27, 2020

Sacroiliac involvement is common in psoriatic arthritis. Findings may include:

  • Bilateral, often asymmetrical, sacroiliitis

  • Marginal erosions

  • Widening of the joint margin and sclerosis, although this is less common in psoriatic arthritis than in ankylosing spondylitis

Squaring of the lumbar vertebrae in the lumbar spine is less common in psoriatic arthritis than in ankylosing spondylitis, whereas paravertebral ossifications not attached to the vertebral margins is more common in patients with psoriatic arthritis.

Learn more about the use of imaging in psoriatic arthritis.

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