| Cartilage-related antigen (CRMP5) | Also known as CV2, this antibody is associated with paraneoplastic neurological syndromes |
| GAD65 antibodies | Glutamic acid decarboxylase, though less common in OMS |
| Surface membrane antibodies | Including those targeting voltage-gated calcium channel subunits |
| Tremor | Intention tremor and postural tremor |
| Dysmetria | Past-pointing on finger-to-nose testing |
| Dysarthria | Slurred speech due to cerebellar involvement |
| Nystagmus | Jerky nystagmus may accompany opsoclonus |
| Cognitive and behavioral changes | Irritability, attention deficits, sleep disturbances |
| Hypotonia | Decreased muscle tone is common in children |
| Databases | OMIMOrphanetClinicalTrialsPubMed |