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Genetic Labs

Houston, Texas

Genetic Laboratory
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Medical Genetics Test Details

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Cancer Chromosomal Microarray Analysis - CytoScan HD SNP Array - Tumor
Test Information: This test code (9515) should be used for TUMOR samples only. To order this test on non-tumor samples, please see test code #8650.

Chromosomal Microarray Analysis (CytoScan HD) is a combined targeted and whole genome array designed and produced by Affymetrix. This array contains ~1,700,000 oligo probes and 750,000 SNP probes that detect copy number variations (CNVs), loss of heterozygosity (LOH), and segmental or whole chromosome uniparental isodisomy. This array covers approximately 18,000 RefSeq genes at an average of 1 probe per 3 Kb and the backbone at an average of 1 probe per 5 Kb. This test can be used to detect CNVs and LOH for both constitutional disorders and different tumors including hematological malignancies as well as solid tumors (see "Special Notes" section).

This test has been validated in our laboratory on many cancer samples with known clinically relevant CNVs and LOH detected by chromosome analysis, FISH, and/or other chromosome microarray platforms. The array is designed to detect losses and gains representing deletions, duplications or amplifications, and LOH of cancer genome. This assay will not detect low level mosaicism, balanced translocations, inversions, or point mutations that may be responsible for the clinical phenotype.

LOH less than 10 Mb in size will not be reported.
Test Details
Test Code: 9515
Special Notes: This array is not validated for FFPE samples at this time. For additional information regarding which microarray will be most appropriate for you, please visit the Cancer Microarray Guide.
Technical Information
Methodology: Chromosomal Microarray Analysis
Sample & Shipping Information
Test Requisition: Tumor Analysis
Specimen Type: Bone Marrow
Requirements: Draw bone marrow in an EDTA (purple-top) tube(s) and send 3-5 cc (Adults/Children) or 2 cc (Infant< 2 years).
Shipping Conditions: Ship at ambient temperature (18-25C/65-77F) in an insulated container by overnight courier. Specimen should arrive in the laboratory within 24 hrs of collection. Do not heat or freeze.

Specimen Type: Fresh Frozen Tissue
Requirements: 150 mg (0.5-2.0 cm3) Fresh tissue snap frozen at -20C. Store at -20C.
Shipping Conditions: Ship on minimum of 10 lbs. of dry ice in an insulated container by overnight courier.

Specimen Type: Leukemic Blood
Requirements: Draw leukemic blood in a EDTA (purple-top) tube(s) and send 3-5 cc (Adults/Children) or 2 cc (Infant<2yrs). (White count > 15,000 with at least 20% blasts).
Shipping Conditions: Ship at ambient temperature (18-25C/65-77F) in an insulated container by overnight courier. Specimen should arrive in the laboratory within 24 hrs of collection. Do not heat or freeze.

Turn Around Time: 10 - 14 days
Billing Information
List Price: *For Insurance or Institutional Prices, please call.
CPT Codes: 81406x1


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