Test Overview
Test Methodology

Unstimulated short term cell culture and chromosome analysis. Fluorescence In Situ Hybridization (FISH) when indicated.

Test Usage

Identification of chromosomal abnormalities to assist in classification of lymph node tumors. Most lymphomas are associated with genetic changes and the observation of an abnormal cytogenetic clone is consistent with a neoplasm.

Reference Range *

Interpretive report provided.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Limitations

Cells must be capable of dividing. Necrotic specimens of those older than 24 hours may not grow. Specimens collected using non-sterile techniques may have microbial contamination.

Test Details
Days Set Up
Monday - Friday, 8:00am - 4:00pm. If necessary a STAT courier may be arranged for processing a sample on a priority basis. Call the laboratory at 763-5805 for additional information.
Analytic Time

7-10 days

Soft Order Code
CGNLN
MiChart Code
Cytogenetics, Chromosome Analysis/Karyotype, Lymphoma Work-Up
Synonyms
  • Karyotype, Mass
  • Karyotype, Neoplasm
  • Cytogenetics, Lymphoma
  • GGNLN
  • GENERIC CYTOGENETICS TEST
  • CGLABEL
  • Chromosome Analysis, Lymph Node for Malignancy
Laboratory
Cytogenetics
Section
Cytogenetics
Specimen Requirements
Collection Instructions

Specimen transport should be arranged so that the specimen is received by MLabs the same day it is collected. Call for a STAT courier if necessary. Collect tumor specimen using aseptic technique. Place tissue in Chromosome Media, available from MLabs. Send at room temperature as soon as possible. Do not allow specimen to overheat or freeze. Small or necrotic samples and samples obtained without collection media are suboptimal.

Rejection Criteria
Formalin fixed, frozen or grossly contaminated specimens.
Normal Volume
3 cm(3) or larger
Minimum Volume
0.5 cm(3)
Additional Information

Appropriate FISH testing will be performed at an additional charge when indicated. FISH testing is available for a number of oncology probes. For additional information on FISH testing and available probes, contact the Cytogenetics Laboratory. By ordering this test the clinician acknowledges that additional reflex testing will be performed and billed at a separate additional charge if indicated.

Billing
CPT Code
88262 Chromosome Analysis, 88239 Tissue Culture
Fee Code
36543 Chromosome Analysis, EA001 Tissue Culture
Resources