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Fresh Lymph Node or Needle Core Tissue Biopsy: 0.5-1 cm3 in RPMI.
FFPE: Tissue block or tissue in 10% NBF.
Note: Collect under sterile conditions, as if for microbiologic culture.
Note on Fresh Tissue: Tissues larger than 0.5 cm3 should be cut into smaller pieces. Intact lymph nodes should be at least bisected. Must be split to RPMI (for Flow Cytometry studies) and 10% NBF (for Morphology).
Note for NYS clients: Please provide date and time of collection.
Refer to individual tests for CPT Code(s)
*The CPT codes provided with our test descriptions are based on AMA guidelines and are for informational purposes only. Correct CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed.
Last Updated: July 25, 2025