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HelpTest Code T46TS Tripartite Motif-Containing Protein 46 (TRIM46) IgG, Tissue Immunofluorescence Titer, Serum
Specimen Required
Only orderable as a reflex. For more information see:
ENS2 / Encephalopathy, Autoimmune/Paraneoplastic Evaluation, Serum
DMS2 / Dementia, Autoimmune/Paraneoplastic Evaluation, Serum
EPS2 / Epilepsy, Autoimmune/Paraneoplastic Evaluation, Serum
MDS2 / Movement Disorder, Autoimmune/Paraneoplastic Evaluation, Serum
MAS1 / Myelopathy, Autoimmune/Paraneoplastic Evaluation, Serum
Useful For
Reporting an end titer result for tripartite motif-containing protein 46 (TRIM46)-IgG in serum specimens
Evaluation of an autoimmune/paraneoplastic neurological syndrome among patients presenting with cerebellar ataxia, encephalitis, or encephalomyelitis.
Testing Algorithm
If the indirect immunofluorescence (IFA) pattern suggests tripartite motif-containing protein 46 (TRIM46) IgG, then the TRIM46 antibody cell-binding assay (CBA) and TRIM46 antibody IFA titer will be performed at an additional charge.
Method Name
Only orderable as a reflex. For more information see:
ENS2 / Encephalopathy, Autoimmune/Paraneoplastic Evaluation, Serum
DMS2 / Dementia, Autoimmune/Paraneoplastic Evaluation, Serum
EPS2 / Epilepsy, Autoimmune/Paraneoplastic Evaluation, Serum
MDS2 / Movement Disorder, Autoimmune/Paraneoplastic Evaluation, Serum
MAS1 / Myelopathy, Autoimmune/Paraneoplastic Evaluation, Serum
Indirect Immunofluorescence Assay (IFA)
Reporting Name
TRIM46 Ab IFA Titer, SSpecimen Type
SerumSpecimen Stability Information
| Specimen Type | Temperature | Time | Special Container |
|---|---|---|---|
| Serum | Refrigerated (preferred) | 28 days | |
| Frozen | 28 days | ||
| Ambient | 72 hours |
Reject Due To
| Gross hemolysis | Reject |
| Gross lipemia | Reject |
| Gross icterus | Reject |
Reference Values
Only orderable as a reflex. For more information see:
ENS2 / Encephalopathy, Autoimmune/Paraneoplastic Evaluation, Serum
DMS2 / Dementia, Autoimmune/Paraneoplastic Evaluation, Serum
EPS2 / Epilepsy, Autoimmune/Paraneoplastic Evaluation, Serum
MDS2 / Movement Disorder, Autoimmune/Paraneoplastic Evaluation, Serum
MAS1 / Myelopathy, Autoimmune/Paraneoplastic Evaluation, Serum
<1:240
Interpretation
A positive result is consistent with a tripartite motif-containing protein 46 (TRIM46-IgG) associated autoimmune disease of the central nervous system. A paraneoplastic cause should be considered.
Day(s) Performed
Monday through Sunday
Report Available
5 to 10 daysPerforming Laboratory
Mayo Clinic Laboratories in Rochester
Test Classification
This test was developed and its performance characteristics determined by Mayo Clinic in a manner consistent with CLIA requirements. It has not been cleared or approved by the US Food and Drug Administration.CPT Code Information
86256
LOINC Code Information
| Test ID | Test Order Name | Order LOINC Value |
|---|---|---|
| T46TS | TRIM46 Ab IFA Titer, S | 105527-6 |
| Result ID | Test Result Name | Result LOINC Value |
|---|---|---|
| 616447 | TRIM46 Ab IFA Titer, S | 105527-6 |