Houston Methodist. Leading Medicine.
Houston Methodist. Leading Medicine

Michael J. Thrall, M.D.

Michael J. Thrall, M.D.


Michael J. Thrall, M.D.

Michael J. Thrall, M.D.

Assistant Member
The Methodist Hospital Research Institute
Director of the Section of Digital Pathology
Department of Pathology and Genomic Medicine
The Methodist Hospital Physicians Organization
Assistant Professor of Pathology and Laboratory Medicine
Weill Cornell Medical College of Cornell University

E-mail: mjthrall@houstonmethodist.org
Phone: 713-441-4459
Fax: 713-793-1603


B.A.   Brown University, Providence, RI
M.D.   University of Minnesota, Minneapolis, MN

Postdoctoral Training

Residency, University of Minnesota, Minneapolis, MN (Anatomic and Clinical Pathology)
Fellowship, University of Minnesota, Minneapolis, MN (Surgical Pathology)
Fellowship, University of Rochester, Rochester, NY (Cytopathology)



Dr. Michael J. Thrall works as both a cytopathologist and a general surgical pathologist with a primary research interest in cytopathology. He is also participating in the formation of the new imaging pathology fellowship program and the associated research projects. Dr. Thrall attended medical school and completed his AP/CP residency training, including a surgical pathology fellowship, at the University of Minnesota in Minneapolis, Minnesota. He then went on to a cytopathology fellowship at the University of Rochester in Rochester, New York. He is a member of the American Society of Cytopathology ASC Bulletin Committee and the American Society for Clinical Pathology.

Description of Research

Dr. Thrall's research interests include cytopathology and imaging pathology, with a recent focus upon endometrial and pancreatic carcinomas and interpretation of atypical squamous cells detected in Papanicolau tests.

Major Areas of Research

cytopathology, imaging pathology

Recent Publications

Koen TM, Mody DR, Scheiber-Pacht M, Fairley T, Thrall MJ. Limiting the use of atypical/inconclusive as a category in nongynecologic cytology specimens. Arch Pathol Lab Med. 2010 Jul;134(7):1016-9.

Thrall MJ, Russell DK, Facik MS, Yao JL, Warner JN, Bonfiglio TA, Giampoli EJ. High-risk HPV testing in women 30 years or older with negative Papanicolaou tests: initial clinical experience with 18-month follow-up. Am J Clin Pathol. 2010 Jun;133(6):894-8.

Thrall MJ, Smith DA, Mody DR. Women >or=30 years of age with low grade squamous intraepithelial lesion (LSIL) have low positivity rates when cotested for high-risk human papillomavirus: should we reconsider HPV triage for LSIL in older women? Diagn Cytopathol. 2010 Jun;38(6):407-12.

Thrall MJ, Giampoli EJ. Routine review of ascites fluid from patients with cirrhosis or hepatocellular carcinoma is a low-yield procedure: an observational study. Cytojournal. 2009 Aug 7;6:16.

Thrall MJ, Pambuccian SE, Stelow EB, McKeon DM, Miller L, Savik K, Gulbahce HE. Impact of the more restrictive definition of atypical squamous cells introduced by the 2001 Bethesda System on the sensitivity and specificity of the Papanicolaou test: a 5-year follow-up study of Papanicolaou tests originally interpreted as ASCUS, reclassified according to Bethesda 2001 criteria. Cancer. 2008 Jun 25;114(3):171-9.

Thrall MJ, Russell DK, Bonfiglio TA, Hoda RS. Use of the ThinPrep Imaging System does not alter the frequency of interpreting Papanicolaou tests as atypical squamous cells of undetermined significance. Cytojournal. 2008 Apr 24;5:10.

Thrall MJ, Kjeldahl KS, Savik K, Gulbahce HE, Pambuccian SE. Significance of benign endometrial cells in papanicolaou tests from women aged >or=40 years. Cancer. 2005 Aug 25;105(4):207-16.