We are proud to announce that PhenoPath is now a Quest Diagnostics Company.
CD34 is a transmembrane sialomucin expressed in lymphohematopoietic stem and progenitor cells, as well as endothelial cells. It is also a marker of a unique subset of mesenchymal tumors (e.g., solitary fibrous tumor, dermatofibrosarcoma protuberans, epithelioid sarcoma, gastrointestinal stromal tumor, etc.). Subcellular Localization: Membranous
Organ: Skin & Mucosa
Disease State: Large Cell Undifferentiated Malignant Neoplams
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