Test Method

FISH

Disease Long Name

Chronic Lymphocytic Leukemia, Small Lymphocytic Leukemia

Disease Abbreviation

CLL, SLL

CPT Code

88377x4, 88368 (Global)
88374x4, 88367 (Tech-only)

Probes / Test Description

CLL1/(ATM/TP53), CLL2/(13q14.3/LAMP1/CEP12),IGH-break-apart, MYB-CEP6, RB1-LAMP1
IF IGH Rearranged, REFLEX: [t(11;14)/CCND1-IGH] and/or [t(6:14)/CCND3-IGH, t(14;18)/IGH-BCL2,CCND2-break-apart] if indicated

Specimen Requirements

  • Bone marrow aspirate: 2-3 mL in sodium heparin (green top) preferred, or 1-2 mL in EDTA (purple top)
  • Peripheral blood: 3 mL in sodium heparin (green top) preferred, or 3 mL in EDTA (purple top)
  • Fresh Tissue: Multiple 2-3 mm pieces of tissue in RPMI transport media (optimum RPMI to tissue ratio is 15:1; (multiple vials are acceptable)
  • Formalin-Fixed Paraffin-Embedded Tissue: Minimum 0.2 x 0.2 x 0.2 cm tissue, non-decalcified tissue only

Storage & Transport

Ship specimen the same day whenever possible, with refrigerated (not frozen) cold pack.

Label all tubes with at least two unique patient identifiers. Slides require one patient identifier. Identifiers include name, DOB, specimen ID# or medical record#.

Turnaround time

3 - 5 days

Level of Service

Global
Tech-Only