DNA Ploidy Analysis, Paraffin Block
Also known as: DNA Histogram, Paraffin
Use
Cancer prognosis. In general, aneuploid tumors have an unfavorable prognosis compared to diploid tumors.
Special Instructions
Not provided.
Limitations
Fixatives other than formalin may not yield equivalent or satisfactory results. No percentage of S phase is reported for tumors analyzed by image cytometry. Small biopsies require image analysis of a 6-μ tissue section. This test is not a diagnostic test for cancer.
Methodology
Cell-based / Cytometry (Flow Cytometry)
Biomarkers
DNA Index
AnalytePloidy Interpretation
AnalyteS Phase Interpretation
Analyte
LOINC Codes
- 30912-0 - DNA Index Spec FC-aCnc
Result Turnaround Time
5-10 days
Related Documents
For more information, please review the documents below
Specimen
Tissue (FFPE)
Volume
One paraffin block
Minimum Volume
Not provided
Container
Paraffin block transport pouch
Collection Instructions
Specimen should be fixed in 10% neutral-buffered formalin. Optimum fixation time is 12 to 24 hours, not to exceed 48 hours.
Storage Instructions
Maintain specimen at room temperature.
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