HER2 FISH
Alias/Synonym: ERBB2 Breast cancer
CPT Code: 88377
- Includes:
- Her2
- Specimen Type, Preferred:
- Formalin fixed paraffin embedded tissue
- Specimen Type, Alternate:
- Formalin fixed paraffin embedded tissue
- Sample Quantity, Preferred:
- 4 slides
- 1 block
- Sample Quantity, Minimum:
- Transport Container:
- Unstained slides
- Paraffin block
- Transport Temperature:
- Room temperature
- Collection Instructions:
- Charged slides should be cut at 4-5 microns thick.
- Specimen Stability:
- Room temperature: Indefinite
- Rejection Criteria:
- Uncharged slides
- Clinical Significance:
- Detects HER2 gene amplification.
- Limitations:
- FISH can only detect aberrations specifically targeted by probe used.
- Turnaround Time:
- 3 day(s)
- Reference Ranges:
- ASCO CAP Guidelines