Hereditary spastic paraplegia.

@article{Fink2002HereditarySP,
  title={Hereditary spastic paraplegia.},
  author={John K. Fink},
  journal={Neurologic clinics},
  year={2002},
  volume={20 3},
  pages={
          711-26
        }
}
The hereditary spastic paraplegias are a large group of clinically similar disorders. Seventeen different HSP loci have been discovered thus far. Different genetic forms of uncomplicated HSP are clinically very similar. Except for the average age at which symptoms appear, different genetic types of uncomplicated HSP cannot be distinguished reliably by clinical parameters alone. For most subjects, HSP is a diagnosis of exclusion. The differential diagnosis includes treatable disorders as well as… CONTINUE READING