FISH for MALT 1 (18q21)
Test Mnemonic
MALT1
CPT Codes
- 88377 - QTY (1)
Aliases
- FISH for assessment of Extranodal Marginal Zone B
- Fluorescence In Situ Hybridization for MALT 1 (18q
Performing Laboratory
Cleveland Clinic Laboratories
Specimen Requirements
| Volume | Type | Container | Collect Temperature | Transport Temperature | Special Instructions |
|---|---|---|---|---|---|
| One | Paraffin block | Clean container | Ambient | Containing representative tumor. | |
| Six | Slide (s), unstained | Clean container | Ambient | 4 um tissue sections on electrostatically charges slides. Samples must not be fixed in Prefer or B5. |
Days Performed
Mon - Thu
Turnaround Time
3 - 5 days
Methodology
| Name | Description |
|---|---|
| Fluorescent In-Situ Hybridization (FISH) |
Special Info
4 um tissue sections on electrostatically charges slides. Samples must not be fixed in Prefer or B5.
Clinical Info
Used in the diagnosis of extranodal marginal zone B-cell lymphomas.