Anti-Ri-associated paraneoplastic opsoclonus-ataxia syndrome in a man with transitional cell carcinoma.
BACKGROUND
There are several case reports describing paraneoplastic syndromes in patients with various forms of bladder carcinoma. Current immunologic analyses have enabled the identification of the antineuronal autoantibodies associated with specific syndromes.


METHODS
A patient with a history of bladder carcinoma presented with opsoclonus and myoclonus.


RESULTS
Workup confirmed the presence of anti-Ri antibodies in the patient's serum and cerebrospinal fluid. The target Ri antigen was found to be expressed by the tumor.


CONCLUSIONS
To the authors' knowledge, there are few reports in the literature describing the long-term clinical follow-up and postmortem evaluation in a patient with this form of paraneoplastic syndrome. More important, the authors believe the current study represents the first time that the presence of anti-Ri antibodies has been noted in a paraneoplastic syndrome associated with transitional cell carcinoma of the bladder.
Prestigiacomo
C J
CJ
Department of Neurological Surgery, The Neurological Institute of New York, New York-Presbyterian Hospital, New York, New York, USA.
Balmaceda
C
C
Dalmau
J
J
D000906:Antibodies; D000951:Antigens, Neoplasm / Q000276:immunology*; D001259:Ataxia / Q000209:etiology* / Q000473:pathology; D002295:Carcinoma, Transitional Cell / Q000150:complications* / Q000276:immunology / Q000473:pathology; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D008875:Middle Aged; D009419:Nerve Tissue Proteins; D000090682:Neuro-Oncological Ventral Antigen; D015835:Ocular Motility Disorders / Q000209:etiology* / Q000473:pathology; D010257:Paraneoplastic Syndromes / Q000276:immunology* / Q000473:pathology; D016601:RNA-Binding Proteins; D001749:Urinary Bladder Neoplasms / Q000150:complications* / Q000276:immunology / Q000473:pathology
D000906:Antibodies; D000951:Antigens, Neoplasm; D009419:Nerve Tissue Proteins; D000090682:Neuro-Oncological Ventral Antigen; D016601:RNA-Binding Proteins