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. The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

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