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Muscle actins (HHF35) pin


Muscle actins (HHF35)

Methodology: IHC

Clinical Significance:
Identifies smooth, skeletal, and cardiac isoforms of actin. HHF35 can be employed as a marker of leiomyosarcomas, rhabdomyosarcomas, and tumors showing myoepithelial differentiation. Subcellular Localization: Cytoplasmic


Disease State: Spindle Cell Tumors / Sarcoma Subtyping

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