Chromosome Analysis, Solid Tumor

Test Code

CHST

CPT Codes
88239, 88264

Includes

This test may be replaced by one of the following replacement tests, if the complete test cannot be performed from the submitted specimen:
Solid tumor culture or No Growth; or
Cytogenetics Communication, if a communication is required

Preferred Specimen

5×5 mm solid tumor tissue

Minimum Volume

5×5 mm

Other Acceptable Specimens

Solid tumor tissue in Hanks' Ringers solution

Instructions

Clinical history and reason for referral are required with test order.
Please specify the tissue source.

Specimen viability decreases during transit. Send specimen to testing laboratory for viability determination. Do not freeze. Do not reject.

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

Room temperature: See instructions Refrigerated: See instructins Frozen: See instructions

Methodology

Karyotype • Microscopy • Tissue Culture

Setup Schedule

Set up: Mon-Sat; Report available: 21 days

Reference Range

See Laboratory Report

Clinical Significance

This test is for cytogenetic analysis of solid tumors such as PNET and sarcoma. Primary cultures are established from the tumor biopsy submitted. When available, 20 metaphase cells are examined microscopically for chromosome abnormalities.

Performing Laboratory
Quest Diagnostics Nichols Institute 14225 Newbrook Drive Chantilly, VA 20153

Last Updated: February 22, 2012

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.