Identifies: The most abundant secretory granule derived serine proteinase used as a marker of masts cells.
Subcellular Localization: Membranous and cytoplasmic
Disease State: Mastocytosis
CPT Code(s): 88342 or 88341 (reference only; CPTs may vary)
Turnaround Time: Within 1-2 business days of receipt
Schedule: Monday - Friday
• 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