Clinical Services

Clinical Services

South Texas Reference Laboratories (STRL) provide a wide range of support services for faculty and staff of the Health Science Center as well as services to outside entities on a fee-for-service basis. We offer both technical services and diagnostic interpretation as requested by the client.

Our services include:

Cytogenetics Laboratory: All tissue types including Amniotic Fluid, Chorionic Villi, Products of Conception, Blood, Bone Marrow, Effusions, Skin Biopsy, Solid Tumors or Lymph Nodes, etc., Our full-service clinical & molecular cytogenetics laboratory has the capability to perform routine karyotyping (G-banding), as well as Fluorescence in-situ hybridization (FISH) studies for prenatal and most cancer related conditions. The laboratory may also provide karyotyping or FISH analysis for research projects.

Electron Microscopy Laboratory is a full service facility that provides technical and professional support for patient care and research studies that require transmission and scanning electron microscopy.

Fungus Testing Laboratory: Fungal identification, antifungal susceptibility testing of yeasts and moulds, measurement of levels of antifungal agents in biological tissues and fluids, molecular identification and strain relatedness studies, clinical trials, environmental sampling analysis, and drug discovery research.

Flow Cytometry Laboratory: Immunophenotypic analysis by multiparameter flow cytometry which is useful in the diagnosis/classification of acute leukemia, non-Hodgkins lymphoma and the detection of residual leukemia/lymphoma following therapy. Also, immunodeficiency panels, CD34 enumeration and detection of hemoglobin F in feto-maternal hemorrhage. Results are reported within 24-48 hours of receiving the sample.

Histopathology Laboratory: Oral, Renal and Skin Biopsy services utilizing routine histology, special stains and immunoflourescence. The laboratory also provides Immunohistochemistry, M uscle histochemistry, Insitu-hybridization, FISH and ELISA studies.

Molecular Diagnostics Laboratory: development and performance of molecular diagnostic test for nucleic acid targets found in a variety of settings in medicine. The primary focus of the laboratory is hematopathology; a selection of genetic and infectious disease tests are also performed. Results of PML-RAR alpha can be reported within 24-48 hours of receiving samples.

CLIA Certificate

CAP Certificate


For Cytogenetics, Electron Microscopy, Flow Cytometry, Histopathology, Molecular Diagnostics
Hours of Operation: Mon - Fri 7:30 AM - 6:00 PM
Room: 344B Medical School Building
Phone (210) 567-6599
Fax (210) 450-2243

For Fungus Testing Lab call:
Hours of Operation: Mon - Fri 7:00 AM - 5:00 PM
Room: 330E Medical School Building
Phone (210) 567-4131
Fax (210) 614-4250