Paraneoplastic Cerebellar Degeneration Follow-up
- Author: Abbas Mehdi, MD; Chief Editor: Stephen A Berman, MD, PhD, MBA more...
Further Outpatient Care
- Patients usually require long-term rehabilitation and/or hospice care in severe situations. Treatment is unsatisfactory, and chance of long-term survival is poor in reported cases.
- In patients in whom no tumor can be detected after a comprehensive workup, routinely perform outpatient measurement of antibody levels with tumor markers and other tests related to diagnosis of possible malignancies.
Prognosis
Prognosis greatly depends on early detection of the underlying neoplasm and its stage at the time of detection.
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| Antibodies Predominantly Associated With PCD | Predominant Syndrome | Associated Cancer |
| Anti-Yo (PCA-1) antibodies | PCD | Ovarian Breast cancers |
| Anti-Tr antibodies | PCD | Hodgkin's lymphoma |
| Anti-mGluR1 antibodies** | PCD | Hodgkin's lymphoma |
| Anti-Zic4 antibodies† | PCD | Small-cell lung cancer |
| Sometimes Associated With PCD | ||
| Anti-VGCC antibodies | Eaton-Lambert syndrome, PCD | Small-cell lung cancer Lymphoma |
| Anti-Hu (ANNA-1) antibodies | Encephalomyelitis, PCD, sensory neuronopathy | Small-cell lung cancer Other cancers |
| Anti-Ri (ANNA-2) antibodies | PCD, brain-stem encephalitis, paraneoplastic opsoclonus-myoclonus | Breast cancer Gynecologic cancer Small-cell lung cancer |
| Anti-CV2/CRMPS antibodies | Encephalomyelitis, PCD, chorea, peripheral neuropathy, uveitis | Small-cell lung cancer Thymoma Other cancers |
| Anti-Ma protein antibodies‡ | Limbic, hypothalamic, brain-stem encephalitis (infrequently PCD) | Testicular cancer Lung cancer Other cancers |
| Anti-amphiphysin antibodies | Stiff-person syndrome, encephalomyelitis, PCD | Breast cancer Small-cell lung cancer |
| *There is no uniform nomenclature for some of these antibodies; variant names appear in parentheses. mGluR1: metabotropic glutamate receptor 1, Zic4: zing finger of the cerebellum 4, and VCGG: voltage-gated calcium channel. **Anti-mGluR1 antibodies have been identified in only 2 patients. † Anti-Zic4 antibodies are predominantly associated with PCD only when no other paraneoplastic antibodies are detectable. ‡Ma proteins include Ma1 and Ma2. Patients with brain-stem and cerebellar dysfunction usually have antibodies against both MA1 and Ma2. | ||

