Infantile-onset ascending hereditary spastic paralysis
Infantile-onset ascending hereditary spastic paralysis
Definition
Infantile-onset ascending hereditary spastic paralysis (IAHSP) is a very rare motor neuron disease characterized by severe spasticity of the lower limbs in early life, progression of spasticity to the upper limbs in late childhood, and dysarthria.
Also known as IAHSP — per MONDO