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Luis E. de Las Casas, M.D.

Contact Information

Phone Numbers

Administrative: (585) 275-5372

Office: (585) 275-1699

Fax: (585) 276-2832

URMFGA member of the University of Rochester Medical Faculty Group

groupAn Accountable Health Partner

assignmentNot Accepting New Patients

Faculty Appointments

Patient Care Setting




Dr. De Las Casas is the Director of Cytopathology at the University of Rochester Medical Center. Prior to joining URMC in 2016, he held faculty appointments in the departments of pathology at the University of Wisconsin, University of Arkansas for Medical Sciences, Texas Tech University Health Science Center, and University of Toledo Medical Center.

He is board-certified in anatomic and clinical pathology, as well as cytopathology. He has an excellent record of peer-reviewed publications, teaching, and professional activities that focus on integrating cytopathology and surgical pathology practices using a personalized multidisciplinary clinical approach.

His diagnostic approach uses cytopathology as the first step in the pathologic diagnosis of tumors. Dr. De Las Casas has founded two different FNA clinics.

He is dedicated to promoting and implementing the concept of interventional cytopathology both in his independent practice and as a consultant to referring clinicians.



| Universidad Peruana Cayetano Heredia

Post-doctoral Training & Residency

07/01/1999 - 06/30/2000
Fellowship in Cytopathology at University of Wisconsin Hospital and Clinics

07/01/1998 - 06/30/1999
Fellowship in Surgical Pathology at East Carolina University School of Medicine

07/01/1996 - 06/30/1998
Residency in Pathology at East Carolina University School of Medicine

07/01/1994 - 06/30/1996
Residency in Pathology at William Beaumont Army Medical Center

07/01/1993 - 06/30/1994
Internship in Pediatrics at Thomason General Hospital

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Eric A. Schenk Award for Excellence in Teaching
Sponsor: Department of Pathology and Laboratory Medicine
Location: University of Rochester Medical Center; Rochester, NY

Eric A. Schenk Award for Excellence in Teaching
Sponsor: Department of Pathology and Laboratory Medicine
Location: University of Rochester Medical Center; Rochester, NY

2015 - 2016
Faculty Teaching Award
Sponsor: Department of Pathology
Location: University of Toledo Medical Center; Toledo, OH

Peter White Award for Excellence in Scholarly Activity
Sponsor: The 8th Annual University of Toledo Internal Medicine Research a

2010 - 2011
Faculty Teaching Award
Sponsor: Department of Pathology at University of Toledo Medical Center

Excellence Award for outstanding performance and commitment to research
Sponsor: Texas Tech University Health Sciences Center Paul Foster School

Papanicolaou Research Award
Sponsor: United States and Canadian Academy of Pathology Annual Meeting
Location: Washington, DC

Distinguished Visitor
Sponsor: Municipality of San Salvador, El Salvador
Location: San Salvador, El Salvador

Academic Award for the Best Scientific Study
Sponsor: XVI Latin American Congress of Obstetrics and Gynecology
Location: El Salvador

Best Paper
Sponsor: Society of Armed Forces Medical Laboratory Scientists Meeting.
Location: Washington, DC

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Journal Articles

Li W, Molnar SL, Mott M, White E, De Las Casas LE. "Superficial CD34-positive fibroblastic tumor: Cytologic features, tissue correlation, ancillary studies, and differential diagnosis of a recently described soft tissue neoplasm." Diagnostic cytopathology.. 2016 Nov 0; 44(11):926-930. Epub 2016 Jul 19.

Molnar SL, Zarka MA, De Las Casas LE. "Going beyond "Basaloid neoplasm": Fine needle aspiration cytology of epithelial-myoepithelial carcinoma of the parotid gland." Diagnostic cytopathology.. 2016 May 0; 44(5):422-5. Epub 2016 Jan 22.

Toumeh A, Sakhi R, Shah S, Arudra SK, De Las Casas LE, Skeel RT. "Ipilimumab-Induced Granulomatous Disease Occurring Simultaneously With Disease Progression in a Patient With Metastatic Melanoma." American journal of therapeutics.. 2016 23(4):e1068-71.

Books & Chapters

Chapter Title: Technical considerations of EUS and EUS-FNA.
Book Title: Cytology of the Mediastinum and Gut via Endoscopic Ultrasound-Guided Aspiration. First Edition
Author List: Bardales RH, De Las Casas LE, Nawras A, Mallery JS.
Published By: Springer 2014

Chapter Title: Normal and abnormal placentation.
Book Title: Clinical Obstetrics: The Fetus and Mother, 3rd Edition
Author List: Korourian S, De Las Casas L
Edited By: Reece EA and Hobbins JC
Published By: Wiley-Blackwell 2007

Chapter Title: Diagnostic Value of Urine Cytology Examination
Book Title: Practical Urologic Cytopathology
Author List: De Las Casas LE, Bardales RH.
Published By: Oxford University Press 2002 in NY, NY