Schmorl cartilage nodules
As Schmorl's nodes or Schmorl's nodes , by Georg Schmorl refers to the displacement ( herniation ) of disc tissue in the vertebral body.
Possible causes of Schmorl's nodules are growth disorders of the cartilaginous endplates of the vertebral bodies and / or trauma to the endplates.
Schmorl's nodules are a radiological diagnostic criterion for Scheuermann's disease . They can also be visualized in the MRI .
Schmorl nodules are visible as flat or spherical indentations in the base plates and cover plates of the vertebral bodies. The intervertebral discs can be narrowed as a result, which appears radiologically as a flattened disc space.
The cover plate opposite the typical Schmorl nodule may show an overgrowth, which as an Edgren-Vaino sign can be helpful in the differential diagnosis.
Must be distinguished are harmless normal variants such as notochord -Rückbildungsstörungen and pathological changes such. B. after spondylodiscitis .
literature
- A. Greenspan: Orthopedic Radiology. A practical approach. 3. Edition. Lippincott Williams & Wilkins, 2000, ISBN 0-7817-1589-X .
- C. Adler: Bone Diseases. Springer, 1983, ISBN 3-540-62836-3 .
- W. Pschyrembel: Clinical Dictionary. 265th edition. Verlag Walter de Gruyter, 2014, ISBN 978-3-11-018534-8 .
Individual evidence
- ^ Maximilian Reiser : Radiology. = Dual Row Radiology (= Dual Row. ). Thieme, Stuttgart 2004, ISBN 3-13-125321-5 .
| This text is based in whole or in part on the entry Schmorl-Knötchen in Flexikon , a wiki of the DocCheck company . The takeover took place on October 21, 2009 under the then valid GNU license for free documentation . |