Friday, October 23, 2009

Diffuse Idiopathic Skeletal Hyperosteosis-MRI

DISH diagnostic criteria include the following : Flowing calcifications and ossifications along the anterolateral aspect of at least 4 contiguous vertebral bodies, with or without osteophytes. Preservation of disk height in the involved areas and an absence of excessive disk disease. Absence of bony ankylosis of facet joints and absence of sacroiliac erosion, sclerosis, or bony fusion, although narrowing and sclerosis of facet joints are acceptable.
Lower thoracic spine involvement is typical of DISH, but the lumbar and cervical spine also can be affected. The left side of the spine typically is spared or less involved, which probably is attributable to the pulsating aorta.

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