In DISH with lumbar involvement, disc height on radiographs is typically what?

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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

In DISH with lumbar involvement, disc height on radiographs is typically what?

Explanation:
In DISH, the problem is ossification of ligaments, especially the anterior longitudinal ligament, leading to flowing anterior osteophytes along the spine. This process tends to spare the intervertebral discs, so the disc spaces stay normal. Therefore, even with lumbar involvement and extensive ligamentous ossification, radiographs typically show preserved disc height rather than narrowing. This contrast with degenerative changes, where disc height often decreases due to disc degeneration.

In DISH, the problem is ossification of ligaments, especially the anterior longitudinal ligament, leading to flowing anterior osteophytes along the spine. This process tends to spare the intervertebral discs, so the disc spaces stay normal. Therefore, even with lumbar involvement and extensive ligamentous ossification, radiographs typically show preserved disc height rather than narrowing. This contrast with degenerative changes, where disc height often decreases due to disc degeneration.

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