[X-ray diagnostic concept of spondylodiscitis].

The destructive discovertebral lesions of ankylosing spondylitis are discussed. Their evaluation in the literature is compared with the newer histologic and radiologic results. The X-ray findings in rheumatoid arthritis are also presented. Using radiographs from 16 of our own patients suffering from ankylosing spondylitis and 5 with rheumatoid arthritis, we analyze the radiological appearances in question.