spinocerebellar ataxia type 18
MeSH: C537197ORPHA: 98771
Overview
Spinocerebellar ataxia type 18 (SCA18) is a very rare subtype of type I autosomal dominant cerebellar ataxia (ADCA type I; see this term). It is characterized by sensory neuropathy and cerebellar ataxia.
Available Treatments (0)
No treatments linked yet
Clinical trials or compassionate use may be available — consult a specialist.
Clinical Presentation
Signs and symptoms associated with spinocerebellar ataxia type 18, sourced from HPO and Orphanet clinical annotations.
AreflexiaMuscle weaknessGait ataxiaSomatic sensory dysfunctionHearing impairmentDysarthriaDysmetriaPes cavusLower limb hyperreflexiaHyporeflexia of lower limbsSensorimotor neuropathyMuscle fibrillationNystagmusCerebellar atrophyHead tremorSkeletal muscle atrophyPeripheral axonal neuropathyTitubation
Classification & Codes
MeSH Code
C537197Orphanet Code
ORPHA:98771spinocerebellar ataxia type 18
| MeSH | C537197 |
| Orphanet | ORPHA:98771 |
| Treatments | 0 drug(s) |
| Symptoms on record | 18 signs |
| Status | published |
Factual Authority
Last Updated3/20/2026
Clinical DataHPO · Orphanet
Drug DataFDA · EMA · CDSCO