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Autosomal recessive spastic paraplegia type 15

Disease definition

Autosomal recessive spastic paraplegia type 15 is a complex form of hereditary spastic paraplegia characterized by a childhood to adulthood onset of slowly progressive lower limb spasticity (resulting in gait disturbance, extensor plantar responses and decreased vibration sense) associated with mild intellectual disability, mild cerebellar ataxia, peripheral neuropathy (with distal upper limb amyotrophy) and retinal degeneration. Thin corpus callosum is a common imaging finding.


Classification level: Disorder
  • Synonym(s):
    • Hereditary spastic paraparesis type 15
    • Kjellin syndrome
    • SPG15
    • Spastic paraplegia-retinal degeneration syndrome
  • Prevalence: <1 / 1 000 000
  • Inheritance: Autosomal recessive 
  • Age of onset: Childhood, Adolescent, Adult
  • ICD-10: G11.4
  • ICD-11: 8B44.01
  • OMIM: 270700
  • UMLS: C1849128
  • MeSH: C536642
  • GARD: 9581
  • MedDRA: -

Detailed information

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Disease review articles


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FSMR : produced/endorsed by FSMR(s)
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