Alternate Test Names:
IMP-3

Methodology: IHC

Clinical Significance:
This is an oncofetal RNA binding protein normally expressed in embryonal tissues and re-expressed in a significant fraction of neoplastic cells, but generally not expressed in normal adult tissues. IMP3 may be helpful in the identification of malignant tumors.

Subcellular localization: Cytoplasmic

Organ: Colon & Other GI, Lung, OB/GYN, Skin & Mucosa

Disease State: Melanoma

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