Test Catalog

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Test ID: EWSF    
Ewing Sarcoma (EWS), 22q12 (EWSR1) Rearrangement, FISH, Tissue

Useful For Suggests clinical disorders or settings where the test may be helpful

Supporting the diagnosis of Ewing sarcoma (EWS)/primitive neuroectodermal tumor (PNET), myxoid chondrosarcoma, desmoplastic small, round cell tumor, clear cell sarcoma, and myxoid liposarcoma when used in conjunction with an anatomic pathology consultation

 

An aid in the diagnosis of EWS when reverse transcriptase-PCR results are equivocal or do not support the clinical picture

Reflex Tests Lists tests that may or may not be performed, at an additional charge, depending on the result and interpretation of the initial tests.

Test IDReporting NameAvailable SeparatelyAlways Performed
_PBCTProbe, +2No, (Bill Only)No
_PADDProbe, +1No, (Bill Only)No
_PB02Probe, +2No, (Bill Only)No
_PB03Probe, +3No, (Bill Only)No
_IL25Interphases, <25No, (Bill Only)No
_I099Interphases, 25-99No, (Bill Only)No
_I300Interphases, >=100 No, (Bill Only)No

Testing Algorithm Delineates situations when tests are added to the initial order. This includes reflex and additional tests.

This test does not include a pathology consult. If a pathology consultation is requested, PATHC / Pathology Consultation should be ordered and the appropriate FISH test will be ordered and performed at an additional charge.

 

This test includes a charge for application of the first probe set (2 FISH probes) and professional interpretation of results. Additional charges will be incurred for all reflex probes performed. Analysis charges will be incurred based on the number of cells analyzed per probe set. If no cells are available for analysis, no analysis charges will be incurred.

 

See the Method Description for specific details.

Method Name A short description of the method used to perform the test

Fluorescence In Situ Hybridization (FISH)

NY State Available Indicates the status of NY State approval and if the test is orderable for NY State clients.

Yes

Reporting Name Lists a shorter or abbreviated version of the Published Name for a test

EWSR1 (22q12), FISH, Ts