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IgvH Mutation Analysis


CPT Code: 81263

Specimen Type, Preferred:
Bone marrow aspirate
Formalin fixed paraffin embedded tissue
Fine Needle aspirate
Specimen Type, Alternate:
Peripheral blood
Sample Quantity, Preferred:
2mL aspirate
10 mL peripheral blood
1 Block
20mL FNA
Sample Quantity, Minimum:
0.5mL aspirate
5mL peripheral blood
5 unstained slides
10mL FNA
Transport Container:
Lavender top (EDTA) tube
Green top (Sodium Heparin) tube
Paraffin block
Unstained slides
Alcohol based fixative (e.g. Cytolyte) for FNA
Transport Temperature:
Refrigerated for tubes & FNA
Room temperature for blocks
Collection Instructions:
If bone marrow is dry tap, submit 5-10mL peripheral blood.
Specimen Stability:
Room temperature: 2 day(s)
Refrigerated: 3 day(s)
Rejection Criteria:
Room temperature or clotted for tubes
Clinical Significance:
Detects mutations from germline sequence of the variable region of the immunoglobulin heavy chain for Chronic Lymphocytic Leukemia (CLL) prognosis.
This test is designed to detect germLine sequences with ≥10% Bcell population.
Turnaround Time:
7 - 10 day(s)
Reference Ranges:
Cutoff value % based on assay sensitivity