SS18 (SYT) (18q11) Gene Rearrangement by FISH
Ordering Recommendation
Aid in molecular diagnosis of synovial sarcoma.
New York DOH Approval Status
Specimen Required
Tumor tissue.
Formalin fix (10 percent neutral buffered formalin) and paraffin-embed tissue. Protect paraffin block from excessive heat. Transport tissue block or 5 unstained (4 micron thick sections) positively charged slides in a tissue transport kit (ARUP supply #47808) available online through eSupply using ARUP Connect (TM) or contact ARUP Client Services at 800-522-2787 (kit recommended, but not necessary). (Min 2 slides)
Room temperature. Also acceptable: Refrigerated. Ship in cooled container during summer months.
Paraffin block with no tumor tissue remaining. Specimens fixed in any fixative other than 10 percent neutral buffered formalin. Decalcified specimens.
Include surgical pathology report.
If multiple specimens (blocks or slides) are sent to ARUP, they must be accompanied by one of the following: an order comment indicating that the ARUP pathologist should choose the specimen most appropriate for testing (e.g., "Choose best block"), or individual orders for each sample submitted. A Pathologist Block Selection Fee (ARUP test code 3002076) will be added to orders that utilize the first option. If multiple specimens are sent to ARUP without a request for pathologist block/slide selection or individual orders, they will be held until clarification is provided.
Ambient: Indefinitely; Refrigerated: Indefinitely; Frozen: Unacceptable
Methodology
Fluorescence in situ Hybridization (FISH)
Performed
Mon-Fri
Reported
3-7 days
Reference Interval
By report
Interpretive Data
Analyte Specific Reagent (ASR)
Note
Hotline History
CPT Codes
88366
Components
Component Test Code* | Component Chart Name | LOINC |
---|---|---|
3000631 | SS18 FISH Reference Number | |
3000632 | SS18 FISH Source | |
3000633 | SS18 FISH Result | |
3000703 | Scoring Method | 81304-8 |
3002952 | Total Cell Count | 78236-7 |
Aliases
- 18q11 gene rearrangement
- 18q11.2; SS18 Break Apart FISH
- SS18 FISH
- SS18 translocation FISH
- SYT FISH
- SYT translocation FISH