Alternative Name
POU1F1, GHF-1, growth hormone factor-1
Methodology
Immunohistochemistry (IHC)
Test Description
PIT1 is a transcription factor critical in the normal development of the anterior pituitary. IHC staining of PIT1 is useful in the classification of pituitary adenomas of anterior pituitary origin. The staining pattern is nuclear.
Specimen Requirements
- A formalin-fixed, paraffin-embedded (FFPE) tissue block is preferred specimen type or
- One (1) unbaked, unstained slide cut at 4-5 microns for H&E staining (required) and two to three (2-3) positively charged unstained slides cut at 3-4 microns for each test/antibody ordered.
- Block and slide identifiers should be clearly written and match exactly with the specimen ID and specimen labeling as noted on the requisition.
Storage & Transportation
Use cold pack for transport. Make sure cold pack is not in direct contact with specimen.
CPT Code(s)*
88342x1 or 88341x1
Turnaround Time
24 hours
Level of Service
Stain Only
New York Approved
Yes