• M Frost, W E Huffer, C I Sze, D Badesch, A G Cajade-Law, and B K Kleinschmidt-DeMasters.
• Department of Pathology, University of Colorado Health Sciences Center, Denver 80262, USA.
• Clin Neuropathol. 1999 Sep 1; 18 (5): 250-9.

AbstractDown Syndrome (DS) is the most common of the chromosomal disorders and manifests abnormalities in several organ systems. While mental retardation, skull and brain anomalies, and the development of Alzheimer-type neuropathological changes in patients greater than age 40 years are well recognized by neurologists and neuropathologists, less appreciated are the various cervical spine abnormalities that can occur. Widening of the anterior atlanto-odontoid distance (AAOD) and atlantooccipital instability occur in up to 21% and 63% of DS patients, respectively, but neurologic complaints are uncommon and rarely are severe enough to contribute to the patient's demise. We present a case of 49-year-old DS patient whose triplegia, subacute progressive respiratory failure, and death could be attributed to severe degenerative joint disease of the cervical spine with osteophyte formation and severe spinal canal stenosis. We provide the first detailed correlation study between pre-mortem magnetic resonance imaging (MRI) and extensive autoptic dissection in an adult DS patient with cervical spine abnormalities, as well as a review of the literature.

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