UTHealth Histopathology Core

Overview of Services

Our fully functional histology laboratory is equipped with state-of-the-art equipment to perform all aspects of histology processing, sectioning, and staining. Our laboratory is CLIA/CAP certified, staffed by experienced and professional histologists and histotechnologists, and provides high quality services for UT researchers. We will consider providing services outside of UT in the future.


Histology Services: Available for human and animal tissues:

  • Cutting and staining sections from frozen tissues (frozen sections).
  • Processing and paraffin-embedding of cells (cell lines) and tissues.
  • Cutting sections from formalin-fixed and paraffin-embedded cells and tissues.
  • Special stains: Please see list of currently available tests; we can evaluate and perform special stains that are not on the list upon request.
  • Immunohistochemical stains, single color and double-color. More colors can be considered.
  • In situ hybridization.


Pathology Services:

We are available for consultations and collaborations:

  • We can recommend the most appropriate reagents to purchase and tests to utilize.
  • We can help with evaluating tissues for disease processes and for biomarker expression and analysis.




Gustavo Ayala, MD, Vice Chair for Outreach, Professor and Distinguished Chair in Pathology and Laboratory Medicine.




Melissa Stephens  MS, HT/HTL (ASCP)

Histology Lab Manager



Location and hours of operation

Hours Location


 6431 Fannin Street 
 Medical School Building 2.231
 Houston, TX. 77030

*please note the core is staffed 5am-5pm Monday-Friday

Links and Resources

  1. Histopathology


Name Role Phone Email Location
Gustavo Ayala, MD
MSB 2.022
Melissa Stephens
Histology Lab Manager
MSB 2.231