Research Cancer Cytogenetics Core Laboratory

The Cytogenetics Laboratory at Texas Children’s Cancer Center is a CLIA/CAP-certified, COG-accredited laboratory that performs comprehensive clinical testing of both pediatric solid tumors and hematological cancers. The laboratory offers routine chromosome analysis, fluorescence in situ hybridization (FISH), and soon SNP array comparative genomic hybridization (CGH) testing on a variety of specimen types, including solid tumors, peripheral blood, bone marrow, and body fluids.

List of Clinical Services

  • Routine Chromosome Analysis (G-banded Karyotype)
  • Interphase and Metaphase Fluorescence in situ Hybridization (FISH) Analysis

Cytogenetic Minimum Specimen Requirements

Transport at room temperature or store at 2~8 C overnight (if necessary). Sample test requisition form or routing slip must accompany sample.

  • Bone Marrow or Peripheral Blood. 3.0 cc in Sodium Heparin (green-top) vacutainer
  • Solid Tumor / Lymph Node / other Non-neoplastic Solid Tissues. ~5mm cubed fresh tissue biopsy transported in a sealed sterile container with cytogenetic transport media (provided through the Histology lab).
    Body Fluids. 5~10 mL in sterile container. 

Prior to obtaining a sample or when a sample is ready, please call the cytogenetic laboratory at 832-824-4457 or page the technologist on-call pager at 713-605-8989 x2569 to arrange for transport. All bone marrow samples are routed through the Pathology Central Receiving Area, located in B.101. Peripheral blood specimens may be transported to P-tube 511 (please call the lab when sending).

Contact Us

Hours of Operation MONDAY-FRIDAY 8:00am - 6:00pm

Weekday Specimen/Package Delivery Address
Texas Children's Hospital Cytogenetic Laboratory
1102 Bates St., Feigin Center, Ste. 1130
Houston, TX 77030

Weekend/Holiday Specimen Delivery Address 
Special Instructions - Please also include the lab phone number, (832) 824-4457, on the air bill.
Texas Children's Hospital - Feigin Center Supply Chain (Cytogenetics)
6621 Fannin, West Tower B1 Level, Ste. B115.14
Houston, TX 77030

On-Call Pager: 832-824-7243 x2569 or 713-605-8989 x12569 if calling from outside Texas Children's Hospital.