Robert B. Lorsbach, MD, PhD

Director, Hematopathology Service, Division of Pathology

Staff Physician, Division of Pathology

Academic Affiliations

Professor, UC Department of Pathology & Laboratory Medicine

Phone 513-636-4261


Diagnostic hematopathology

Robert B. Lorsbach, MD, PhD, is a board certified hematopathologist with nearly 20 years of experience in diagnostic hematopathology. He is the director of the hematopathology service in the Division of Pathology and a professor of pathology at the University of Cincinnati College of Medicine. Dr. Lorsbach is an expert in all aspects of pediatric hematopathology, including flow cytometry and its application to the detection if minimal residual disease in hematologic malignancy.

Prior to joining Cincinnati Children's Hospital Medical Center, Dr. Lorsbach was a professor at the University of Arkansas for Medical Sciences. Dr. Lorsbach earned his medical and philosophical degrees from the University of Kansas School of Medicine. He completed his fellowship and post-doctoral training at the Brigham and Women's Hospital.

MD: University of Kansas, Lawrence, KS.

PhD: Experimental Pathology, University of Kansas, Lawrence, KS.

Post-Doctoral Training: Residency, Fellowship in Hematopathology, Post doctoral fellow, Department of Pathology, Brigham & Women's Hospital, Boston, MA.

View PubMed Publications

Lee LH, Gasilina A, Roychoudhury J, Clark J, McCormack FX, Pressey J, Lorsbach RB, Kumar AR. Real-time genomic profiling of histiocytoses identifies early-kinase domain BRAF alterations while improving treatment outcomes. JCI Insight. 2017;2(3):e89473.

Alapat D, Coviello-Malle J, Owens R, Qu P, Barlogie B, Shaughnessy JD, Lorsbach RB. Diagnostic usefulness and prognostic impact of CD200 expression in lymphoid malignancies and plasma cell myeloma. Am J Clin Pathol. 2012 Jan;137(1):93-100.

Lorsbach RB, Hsi ED, Dogan A, Fend F. Plasma cell myeloma and related neoplasms. Am J Clin Pathol. 2011 Aug;136(2):168-82.

Lorsbach RB, Moore J, Ang SO, Sun W, Lenny N, Downing JR. Role of RUNX1 in adult hematopoiesis: analysis of RUNX1-IRES-GFP knock-in mice reveals differential lineage expression. Blood. 2004 Apr 1;103(7):2522-9.

Lorsbach RB, Moore J, Mathew S, Raimondi SC, Mukatira ST, Downing JR. TET1, a member of a novel protein family, is fused to MLL in acute myeloid leukemia containing the t(10;11)(q22;q23). Leukemia. 2003 Mar;17(3):637-41.

Lorsbach RB, Shay-Seymore D, Moore J, Banks PM, Hasserjian RP, Sandlund JT, Behm FG. Clinicopathologic analysis of follicular lymphoma occurring in children. Blood. 2002 Mar 15;99(6):1959-64.

Cetin N, Lorsbach RB. Pan myeloid antigen-negative pediatric acute megakaryoblastic leukemia. Pediatr Blood Cancer. 2014 Nov;61(11):2089-91.

Greenwald RJ, Boussiotis VA, Lorsbach RB, Abbas AK, Sharpe AH. CTLA-4 regulates induction of anergy in vivo. Immunity. 2001 Feb;14(2):145-55.

Lorsbach RB. Update on the Diagnosis and Classification of the Plasma Cell Neoplasms. Surg Pathol Clin. 2010 Dec;3(4):1061-89.

Hsi ED, Lorsbach RB, Fend F, Dogan A. Plasmablastic lymphoma and related disorders. Am J Clin Pathol. 2011 Aug;136(2):183-94.