Methodology: IHC

Clinical Significance:
Identifies: A hormone expressed in a subset of pituicytes and useful in the subclassification of pituitary cell adenomas (i.e., identification of gonadotroph cell adenoma). Best used as part of a panel of markers to pituitary-restricted hormones (e.g., thyroid stimulating hormone [TSH], follicle stimulating hormone [FSH], luteinizing hormone [LH], prolactin [PRL], adrenocoritcotropic hormone [ACTH], and growth hormone [GH]. Subcellular Localization: Cytoplasmic

Organ: Brain/CNS

Disease State:

CPT Code(s): 88342 or 88341 (reference only; CPTs may vary)

Turnaround Time: Within 1-2 business days of receipt

Schedule: Monday - Friday

Specimen Requirements:
• Formalin-fixed, paraffin-embedded (FFPE) tissue block or cell block - OR - • 1 unstained slide for each test requested plus 3-4 additional unstained slides cut at 4µm