Chromosome Study: Neoplastic Lymphatic Tissue

Additional Information:

UFHPL Epic order code: LAB5851

CPT Code(s):

  • 88239
  • 88262
  • 88291

Specimen Requirements:

Lymph Node/Spleen/Other: Aseptically obtain a sample of approximately 2 mm x 2 mm x 2 mm and deposit it in RPMI tissue culture medium.*

Fine-Needle Aspirates: Deliver the contents in RPMI or sterile tissue culture medium in a 15 mL conical tube.*

Unacceptable Conditions:

  • Frozen specimens
  • Specimens greater than 48 hours old*
Stability (collection to initiation of testing):

  • Ambient: 24 – 48 hours old*
  • Frozen: Unacceptable

* Cell viability of specimens requiring cell culture may be compromised in specimens greater than 48 hours old upon receipt. Refrigeration at 2° – 8° C may assist when a delay in delivery is unpreventable. Do not freeze or place specimens directly on ice.

No formalin-, alcohol- or paraffin-preserved specimens. Do not freeze or fix samples in any manner contrary to the maintenance of cell viability. Maintain sample sterility; keep all specimens at room temperature; and deliver samples to the laboratory within 24 – 48 hours. Ship specimens at room temperature for overnight delivery.


This test is used to identify clonal chromosome changes by conventional karyotyping methods associated with various lymphoma subtypes.


Classic cytogenetic G-band analysis (karyotyping); requires cell culture


10 – 28 days

Reference Values:

By report; interpretive