| Preferred Sample | Formalin fixed tissue (FFT), FFPE |
| Fee | $40 |
| Schedule | Days Tested MON | TUE | WED | THU | FRI Turnaround Time 2-5 days |
| Description | CD20 is expressed primarily on B-cells but has also been detected on both normal and neoplastic T-cells. |
| Species | Canine | Feline |
| Shipping Requirements | In cold weather, add 1 part ethanol to 9 parts 10% buffered formalin to prevent freezing during transit. |