Dr. R. Patrick Dorion

Dr. R. Patrick DorionR. PATRICK DORION, M.D.
Anatomic Pathology, Clinical Pathology, Hematology

100 North Academy Avenue
Danville, PA 17822-1920

Dr. Dorion is an Associate of Geisinger Medical Laboratories at Geisinger Medical Center.


He received his M.D. from the Universidad de San Carlos de Guatemala, and received his pathology residency training at the Geisinger Medical Center in Danville, Pennsylvania. He completed a fellowship in hematology at the Medical College of Virginia in Richmond.


Dr. Dorion is board certified in anatomic and clinical pathology as well as hematology. His areas of specialization include hematopathology and coagulation studies, head and neck pathology, soft tissue and bone pathology, thyroid, and gastrointestinal pathology.

Recent Academic Activity

Publications in Peer-Reviewed Journals:

Dorion A, Crabtree G, Dorion RP. Use of Polarized Light in the Diagnosis of “Fuzz” Granuloma in the Conjunctiva of a Child. Case Rep Ophthalmol.2020; In:Press,

Rohr B, Dorion RP. What's eating you? Clothes moth. Cutis.2018; 101(6):413-414,

Other Publications:

Dorion RP. Case Studies in Hematology and Coagulation. 2nd edition. Gene Gulatil, Joanne Flicko-O’Hara and John Kraus Eds ASCP, Case Set, 2019.

Abstracts, Posters, and Other Presentations:

Tsang P, Harrison HH, Perry D, Olson J, Dorion P, Schuerch C. Heparin-Induced Thrombocytopenia: Optimizing Laboratory Utilization and Anticoagulation Stewardship. Abstract (submitted) American Society for Clinical Pathology Annual Meeting, National Harbor, Maryland, October 2017.

Harrison HH, Tutaeva V, Dorion RP, Haynes AE, Schuerch C, Tsang P, Zhang K, Zhang X, Hematopathology Utilization Team, Kip NS. Utilization of Fluorescent In Situ Hybridization (FISH) Probe Panels in Routine Clinical Hematopathology Practice: Lymphoid and Plasma Cell Disorders. Abstract (submitted) American Society for Clinical Pathology Annual Meeting, Chicago, Illinois, September 2017.

Textbook Chapters

Dorion RP et al. Acute Leukemias, Acute Myeloid Leukemia with t(8;21) and Acute Ph-Lymphoblastic Leukemia. In Case Studies in Hematology and Coagulation 2nd edition. Gene Gulati G. Filicko-O'Hara J, Krause, JR, eds. Alexandria, Virginia: American Society of Clinical Oncology; 2019, 700.

Locations  |    Search  |    Site Map |   Contact Us

©2000-2024 Geisinger Health System.   All rights reserved.