Pax-5 by Immunohistochemistry
Also known as: PAX5 IHC
Use
This test provides immunohistochemical detection of PAX5, a B‑cell lineage‑specific transcription factor (also known as B‑cell–specific activator protein, BSAP), used to aid in classification of B‑cell lymphomas via technical stain; results are intended for interpretation within clinical context by a pathologist. This is offered as a stain‑and‑return technical service only.
Special Instructions
Submit electronic request or use ARUP Immunohistochemistry Stain Form (#32978) with an ARUP client number if electronic ordering is unavailable. Refer to the ARUP Immunohistochemistry Stain Offerings brochure. Use tissue block or at least two positively charged unstained slides (3‑5 µm) in ARUP tissue transport kit #47808. Do not oven bake precut slides.
Limitations
Specimens with non‑representative tissue types or depleted specimens are unacceptable. Slides must be protected from excessive heat. Frozen specimens are unacceptable. Interpretation depends on adequacy of tissue and proper fixation; test does not provide interpretive reporting—only technical staining.
Methodology
Immunoassay (IHC)
Biomarkers
LOINC Codes
- 94736-6
Result Turnaround Time
1-3 days
Related Documents
For more information, please review the documents below
Specimen
Tissue (FFPE)
Volume
Not provided
Minimum Volume
2 slides
Container
ARUP tissue transport kit (#47808)
Collection Instructions
Protect paraffin block and/or slides from excessive heat; if sending precut slides, do not oven bake
Storage Instructions
Room temperature or refrigerated; ship in cooled container during summer months
Causes for Rejection
Non‑representative tissue type; depleted specimens
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Indefinitely |
| Refrigerated | Indefinitely |
| Frozen | Unacceptable |