ARUP's Laboratory Test Directory

Gastrointestinal Stromal Tumor Mutation : 2002674

Mnemonic: GIST MUT

Methodology: Polymerase Chain Reaction/High Resolution Melt Analysis
Performed: Varies
Reported: 10-12 days
Specimen Required: Collect: Tumor tissue.

Storage/Transport Temperature: Paraffin-embedded, formalin-fixed tissue block, or 6 unstained 5 µm slides at 20-25°C. (Min: 4 slides) Protect paraffin block from excessive heat. Ship in cooled container during summer months. Include surgical pathology report.

Remarks: Only tissue that is clearly tumor (established by histological criteria) should be tested

Unacceptable Conditions: Specimens fixed/processed in alternative fixatives (alcohol, Prefershould not be submitted.

Stability (collection to initiation of testing): Ambient: Indefinitely; Refrigerated: Indefinitely; Frozen: Unacceptable
Reference Interval:
By report
Interpretive Data: Refer to report

Please refer to Statement B in the Compliance Statements section in the front of the Laboratory Test Directory.
CPT Code(s): 88342 Immunohistochemistry; 88381 Microdissection; 83907 Lysis; 83898 x2 Amplification; if additional exons are required, add 83898 (**) Amplification times number of exons tested; 83912 Interpretation and report - Additional CPT code modifiers may be required for procedures performed to test for oncologic or inherited disorders.
Cross References: c-KIT for Gastrointestinal Stromal Tumor Mutation, CD117, cKIT for Gastrointestinal Stromal Tumor Mutation, GIST Mutation, KIT for Gastrointestinal Stromal Tumor Mutation
 
 

 

 

 
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