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Test Code SP5CC Septin-5 Antibody, Cell-Binding Assay, Spinal Fluid


Specimen Required


Only orderable as a reflex. For more information see MDC2 / Movement Disorder, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid.

 

Container/Tube: Sterile vial

Specimen Volume: 1.5 mL


Testing Algorithm

If the indirect immunofluorescence (IFA) pattern suggests septin-5, then this test and septin-5 antibody IFA titer will be performed at an additional charge.

Method Name

Only orderable as a reflex. For more information see MDC2 / Movement Disorder, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid.

 

Cell-Binding Assay (CBA)

Specimen Type

CSF

Specimen Minimum Volume

See Specimen Required

Specimen Stability Information

Specimen Type Temperature Time
CSF Refrigerated (preferred) 28 days
  Frozen  28 days
  Ambient  72 hours

Reject Due To

Gross hemolysis Reject
Gross lipemia Reject
Gross icterus Reject

Clinical Information

Septin-5 IgG is a biomarker of a rapidly progressive, but treatable, form of autoimmune cerebellar ataxia. Patients present with subacute onset of cerebellar ataxia with prominent eye movement symptoms (oscillopsia or vertigo).

 

Improvement may occur after immunotherapy.

Reference Values

Only orderable as a reflex. For more information see MDC2 / Movement Disorder, Autoimmune/Paraneoplastic Evaluation, Spinal Fluid.

 

Negative

Day(s) Performed

Monday through Sunday

Report Available

5 to 10 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

CPT Code Information

86255