Thyroid Stimulating Hormone by Immunohistochemistry
Also known as: TSH-IHC
Use
Immunohistochemical detection of thyroid stimulating hormone (TSH) in formalin‑fixed, paraffin‑embedded tissue/cell block specimens as a stain‑and‑return service. Used when tissue localization of TSH expression is required for diagnostic or pathological evaluation.
Special Instructions
This assay is performed as a stain‑and‑return service only. Refer to ARUP Immunohistochemistry Stain Offerings brochure for ordering recommendations. Laboratory Developed Test (LDT).
Limitations
Cells must be prepared into a cellblock; do not use heat‑exposed paraffin slides. Slides must be positively charged and precut slides must not be oven baked. Fixation in 10% neutral buffered formalin and paraffin embedding are required. Frozen specimens are unacceptable. Specificity, sensitivity, or interpretive limitations beyond those implied by IHC methodology are not stated.
New York Approved
Methodology
Immunoassay (IHC)
Biomarkers
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
Tissue block or 2 unstained (4‑micron) positively charged slides in tissue transport kit (ARUP supply #47808)
Collection Instructions
Transport tissue block or 2 unstained 4‑micron thick positively‑charged slides in ARUP tissue transport kit; if sending precut slides, do not oven bake.
Storage Instructions
Room temperature or refrigerated; ship in cooled container during summer months.
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Indefinitely |
| Refrigerated | Indefinitely |
| Frozen | Unacceptable |