FISH for FOXO1A gene (13q14)(FKHR)

Test Mnemonic


CPT Codes

  • 88377 - QTY (1)


  • FISH for FKHR gene (13q14)
  • Fluorescence In Situ Hybridization for FKHR (13q14)


  • LSI 13q14

Performing Laboratory

Cleveland Clinic Laboratories

Specimen Requirements

Volume Type Container Collect Temperature Transport Temperature Special Instructions
2 slidesSlide (s), unstainedClean containerAmbientAmbientOne formalin-fixed, paraffin embedded block containing representative tissue OR unstained 4 μm tissue sections on electrostatically charged slides containing representative tumor. Tissue must be fixed in formalin NOT B5 or PREFER fixative


Environmental Condition Description
Ambient FFPE tissue blocks and slides from FFPE specimens are stable at ambient temperatures

Days Performed

5 days per week

Turnaround Time

5 - 7 days


Name Description
Fluorescent In-Situ Hybridization (FISH) 

Clinical Info

Interphase FISH analysis utilizing a dual color, break-apart probe for the FOXO1A gene at 13q14.11. Rearrangements involving the FOXO1A gene are observed in alveolar rhabdomyosarcoma. The translocation partner gene cannot be identified in this assay. If no cells are available for analysis, no analysis charges will be incurred.