Casandra
Casandra Test Code MP78828Version 1 (DRAFT)
Performing Lab
CD33
Clinical Use
Order TestUse
CD33 antigen is expressed on myelomonocytic precursor cells and throughout myeloid and monocyte maturation, but is absent on granulocytes. Some acute undifferentiated leukemias and acute lymphoblastic leukemias have been reported to express CD33.
Special Instructions
Not provided.
Limitations
Specimens must be fixed in 10% NBF or B plus. All other fixatives will be rejected.
Test Details
Methodology
Immunoassay (IHC)
Biomarkers
CD33
ProteinIHC
Expression • Ordinal Score (e.g., TPS, CPS, H-score)
Result Turnaround Time
2 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Tissue (FFPE)
Volume
Not provided
Minimum Volume
Not provided
Container
FFPE Block
Collection Instructions
Fixative should be at a 20:1 fixative to tissue ratio, 10% neutral buffered formalin (NBF) for 6-72 hours (48-72 hours PREFERRED)
Storage Instructions
Store at 15°C to 25°C
Causes for Rejection
Specimens must be fixed in 10% NBF or B plus.