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spinal muscular atrophies - Humpath.com - Human pathology

Home > E. Pathology by systems > Nervous system > Peripheral nerves > spinal muscular atrophies

spinal muscular atrophies

Sunday 20 April 2008

Spinal muscular atrophies (SMAs) affect mainly the lower motor neurons in children. As in ALS, there is a selective loss of anterior horn cells and atrophy of anterior spinal roots. It includes several entities with distinct clinical courses.

Types

SMA1
SMA2
SMA3
SMA4