SS18-SSX t(X;18) Translocations by RT-PCR (Inactive as of 11/14/16. Refer to 2007222)
Ordering Recommendation

Molecular diagnosis of synovial sarcoma.

Reverse Transcription Polymerase Chain Reaction
RNA Isolation: Sun-Sat; Assay: Varies
4-7 days
New York DOH Approval Status
This test is New York DOH approved.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
Tumor tissue.  
Specimen Preparation
Formalin fix (10 percent neutral buffered formalin) and paraffin embed tissue. Protect from excessive heat. Transport four 10-micron shavings. Also acceptable: Tissue block; will be returned after testing. Transport block(s) and/or shavings in a tissue transport kit (ARUP supply #47808) available online through eSupply using ARUP Connect or contact ARUP Client Services at (800) 522-2787.  
Storage/Transport Temperature
Room temperature or refrigerated. Ship in cooled container during summer months.  
Unacceptable Conditions
No tumor in tissue. Specimens fixed/processed in alternative fixatives (alcohol, Prefer®) or heavy metal fixatives. Decalcified specimens. Tissue on slides.  
Ambient: Indefinitely; Refrigerated: Indefinitely; Frozen: Unacceptable  
Reference Interval
Interpretive Data
Refer to report.
This test is performed pursuant to an agreement with Roche Molecular Systems, Inc.

Compliance Statement B: For laboratory developed tests not using a RUO kit, and for FDA approved, cleared or 510(k) exempt assays with alterations. This test was developed and its performance characteristics determined by ARUP Laboratories. The U. S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions.
CPT Code(s)
81401 x2
Component Test Code*Component Chart NameLOINC
0040119SS18-SSX t(X;18) results21826-3
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
  • SSX
  • SYT
  • SYT-SSX fusion
  • SYT-SSX t(X;18) Translocation by RT-PCR
  • t(X;18)
  • X;18