Methodology: FISH

Clinical Significance:
This FISH test detects deletion of 20q12, which is a chromosomal abnormality seen in myelodysplastic syndrome (MDS) and acute myeloid leukemia (AML). This FISH test is frequently utilized in the workup of MDS, which is a heterogeneous group of clonal myeloid stem cell disorders. Deletion of 20q12 as a sole abnormality is associated with a favorable prognosis. When seen with other chromosomal abnormalities, deletion 20q12 is associated with a poor prognosis. Probe type: Single Color Enumeration

Organ: Blood/Bone Marrow

Disease State: Acute Myeloid Leukemia (AML) / Myeloid Sarcoma

CPT Code(s): 88367 or 88373. The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

Turnaround Time: Within 4-6 business days of receipt

Schedule: Monday - Friday

Specimen Requirements:
• Peripheral blood, Preferred: 3 ml in sodium heparin (green top) / Acceptable: 3 ml in EDTA (purple top) - OR - • Bone marrow aspirate, Preferred: 1-2 ml in sodium heparin (green top) / Acceptable: 1-2 ml in EDTA (purple top) - OR - • Fresh tissue in RPMI