Radiographic sacroiliitis is a feature seen in which stage of Ankylosing Spondylitis?

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Prepare for the CMS II Rheumatology E1 Exam with our comprehensive quiz. Study using flashcards and multiple-choice questions, each with hints and explanations. Get ready for success!

Multiple Choice

Radiographic sacroiliitis is a feature seen in which stage of Ankylosing Spondylitis?

Explanation:
Imaging-based structural damage to the sacroiliac joints on a plain X-ray defines the radiographic stage of ankylosing spondylitis. When sacroiliitis is visible on radiographs—showing changes like erosions, sclerosis, or eventual bridging/ankylosis—that marks the radiographic phase. In the non-radiographic phase, X-rays appear normal at the sacroiliac joints, though MRI may reveal active inflammation. Over time, ongoing inflammation can lead to the radiographic changes seen on X-ray, signaling progression to the radiographic stage.

Imaging-based structural damage to the sacroiliac joints on a plain X-ray defines the radiographic stage of ankylosing spondylitis. When sacroiliitis is visible on radiographs—showing changes like erosions, sclerosis, or eventual bridging/ankylosis—that marks the radiographic phase. In the non-radiographic phase, X-rays appear normal at the sacroiliac joints, though MRI may reveal active inflammation. Over time, ongoing inflammation can lead to the radiographic changes seen on X-ray, signaling progression to the radiographic stage.

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