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DOG1 pin



Methodology: IHC

Clinical Significance:
Identifies DOG1, a novel marker of gastrointestinal stromal tumors (GISTs), and complements other markers such as c-kit (CD117). DOG1 is expressed in a significant subset of c-kit-negative GISTs. Subcellular Localization: Cytoplasmic and membranous

Organ: Colon & Other GI

Disease State: Spindle Cell Tumors / Sarcoma Subtyping

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