Paraneoplastic Neurologic Syndromes
NORD gratefully acknowledges Josep Dalmau, MD, PhD, Research Professor, ICREA (Catalan Institution of Research and Advanced Studies) and IDIBAPS (Institution for Biomedical Research August Pi i Sunyer); Hospital Clinic, University of Barcelona, Spain; Adjunct Professor, Neurology, University of Pennsylvania, for assistance in the preparation of this report.
Paraneoplastic neurologic syndromes (PNS) are a group of conditions that affect the nervous system (brain, spinal cord, nerves and/or muscles) in patients with cancer. The term "paraneoplastic" means that the neurological syndrome is not caused by the tumor itself, but by the immunological reactions that the tumor produces. It is believed that the body’s normal immunological system interprets the tumor as an invasion. When this occurs, the immunological system mounts an immune response, utilizing antibodies and lymphocytes to fight the tumor. The end result is that the patient’s own immune system can cause collateral damage to the nervous system, which can sometimes be severe. In many patients, the immune response can cause nervous system damage that far exceeds the damage done to the tumor. The effects of PNS can remit entirely, although there can also be permanent effects.
NORD offers an online community for this rare disease. RareConnect was created by EURORDIS (European Rare Disease Organisation) and NORD (National Organization for Rare Disorders) to provide a safe space where individuals and families affected by rare diseases can connect with each other, share vital experiences, and find helpful information and resources. You can view these international, rare disease communities at www.rareconnect.org.
January 1, 1970