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Arch Neurol. 1988 Dec;45(12):1304-7.

Primary lateral sclerosis. A clinical diagnosis reemerges.

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1
Department of Neurology, Columbia Presbyterian Medical Center, New York 10032-3784.

Abstract

Adults with slowly progressive noninherited gait disorders may show no abnormalities on examination other than signs implicating the corticospinal tracts. That is the syndrome of "primary lateral sclerosis" (PLS), a clinical diagnosis that has been avoided because it is a diagnosis of exclusion, proven only at autopsy. Now, modern technology can exclude other disorders that can cause the syndrome with an accuracy of about 95%. That serves to eliminate the following: compressive lesions at the foramen magnum or cervical spinal cord, multiple sclerosis, amyotrophic lateral sclerosis, Chiari malformation, syringomyelia, biochemical abnormality, and persistent infection with human immunodeficiency virus or human T-lymphotrophic virus type I. We studied three autopsy-proved cases of PLS; six living patients in whom PLS was diagnosed clinically after comprehensive evaluations that excluded the alternative diagnoses; and two patients with this syndrome of PLS and antibodies to human immunodeficiency virus seropositivity that clinically resembled PLS. Primary lateral sclerosis is now a respectable and permissible diagnosis.

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PMID:
3196189
[Indexed for MEDLINE]
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