The Clinical and Molecular Cytogenetics Laboratory

The Clinical and Molecular Cytogenetics Laboratory is a component of South Texas Reference Laboratories of the Department of Pathology and Laboratory Medicine at the UT Health San Antonio. The laboratory provides state of the art diagnostic and research services for the UT Health San Antonio as well as to other hospitals, clinics and physicians in San Antonio and surrounding cities. We are a full-service laboratory performing routine chromosome analysis (RCA), Fluorescence In Situ Hybridization (FISH) testing, and high-resolution microarray testing for constitutional and acquired conditions using cutting-edge technology. For more information, please contact client services at 210-567-6599.

Mission Statement

Our goal is to provide accurate and timely chromosome analysis for patients using state of the art techniques.


To establish client billing or other arrangement for Cytogenetics testing, please contact us at .


·       UT Health San Antonio Cytogenetics Laboratory does not perform testing on “Formalin Fixed Paraffin Embedded (FFPE)” tissues/samples.

·       UT Health San Antonio Cytogenetics Laboratory does not perform FISH testing on “Production of Conception (POC)” samples.

·       The “Chromosome analysis reflex to microarray – SNP OLIGO (SNP-BL)” testing is only for peripheral blood samples from neonates.

Test Menu


Constitutional Studies

Chromosome Analysis – BLOOD

Chromosome Analysis – AMNIOTIC FLUID

Chromosome Analysis – PRODUCTS OF CONCEPTION

Chromosome Analysis – SKIN


DiGeorge Syndrome

Microarray Testing – SNP Oligo

Chromosomal Microarray (CytoScan® Dx Assay)

Chromosomal Microarray (CytoScan® HD Assay)

Acquired Studies

Chromosome Analysis – BONE MARROW

Chromosome Analysis – LEUKEMIC BLOOD

Chromosome Analysis – LYMPH NODE

Chromosome Analysis – SOLID TUMOR


AML/MDS              MPD

ALL                        B-cell Lymphoma

MM                        T-cell Lymphoma




*Probes used on panels may be ordered as single tests.

Service to Clients

A board certified clinical cytogeneticist is available to provide assistance with utilization of tests, interpretation for all cases and discussion of abnormal results with the referring physician. Final reports are sent to all referring physicians, hospitals and laboratories by secure email or facsimile. Preliminary reports are transmitted upon request and photographs of all karyotypes and FISH results are available upon request.

Reflex Testing CytoScan DX Assay (SNP Microarray)

Contact us

Clinical and Molecular Cytogenetics Laboratory
Department of Pathology Room 318C
7703 Floyd Curl Drive
San Antonio, Texas


Hours of Operation: 
8:00am to 5:00pm.

Patient care

For better patient care we optimize limited Multiple Myeloma Samples.

More About Samples