FISH for ERBB2 (HER2) Gene Amplification for Gastroesophageal Cancer
Test Mnemonic
FSHHER2G
CPT Codes
- 88377 - QTY (1)
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| 2 | Tissue | Slides, unstained | Ambient | Ambient | One 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. |
Stability
| Environmental Condition | Description |
|---|---|
| Ambient | Sample is formalin fixed and must not be fixed in Prefer or B5. |
Days Performed
5 days per week
Turnaround Time
5 - 7 days
Methodology
| Name | Description |
|---|---|
| Fluorescent In-Situ Hybridization (FISH) |