# Fluorescence In Situ Hybridization, Topoisomerase Ii Alpha, Gene Amplification And Deletion
> **Product code: NXG** · Class III — High Risk (PMA approval required, life-sustaining) · Unknown · —
## Classification
- **FDA Product Code:** NXG
- **Device class:** Class III — High Risk (PMA approval required, life-sustaining)
- **Regulation:** —
- **Review panel:** PA
- **Medical specialty:** Unknown
- **Submission type:** 2
- **GMP exempt:** N
- **Life sustaining:** N
- **Implant:** N
- **Third-party review:** N
## Definition

Topoisomerase ii alpha (top2a) fluorescence in situ hybridization (fish) kit is to detect the top2a gene copy number changes (amplification and deletion) in breast cancer using formalin-fixed, paraffin-embeded human breast cancer tissue specimen.

## Market data
- **Cleared 510(k) submissions:** 0
- **Registered establishments:** 0
## Source
- [FDA Device Classification](https://www.accessdata.fda.gov/scripts/cdrh/cfdocs/cfpcd/classification.cfm?ID=NXG)
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