Gregory T. MacLennan

Gregory T. MacLennan, MD is a Professor in the Department of Pathology and Department of Urology at the School of Medicine, Case Western Reserve University (CWRU), and a Physician at University Hospitals Cleveland Medical Center (UHCMC). He earned his MD from the University of Manitoba in 1971 and completed surgical and urology training in Canada and a urodynamics fellowship in the UK. After clinical practice in urology, he transitioned to anatomic pathology, completing further training at Mayo Clinic.

Education:

• MD, University of Manitoba (1971)
• Fellowship in Urodynamics, St. Peter’s Hospitals, London (1977–1978)
• Training in Anatomic Pathology & Cytopathology, Manitoba Affiliated Teaching Hospitals (1989–1994)
• Fellowship in Surgical/Urologic Pathology, Mayo Clinic (1994–1995)

Research Interests: Dr. MacLennan specializes in genitourinary pathology, focusing on diagnostic surgical and cytopathology. His work integrates clinical and basic science collaborations, addressing urogenital and reproductive system pathologies. Key areas include tumors like liposarcoma, renal pseudotumors, and urachal adenocarcinoma, emphasizing multidisciplinary approaches with urologists, oncologists, and radiologists.

Key Roles:

• Director of Human Tissue Procurement Facility (17 years)
• Director of Surgical Pathology (8 years)
• Division Chief of Anatomic Pathology (7 years)
• Editorial Board Member, Journal of Urology (7 years)

Awards:

• 2015: Inducted into CWRU Urology Department Hall of Fame
• Specialist Certification: Royal College of Physicians and Surgeons of Canada
• Board Certification: American Boards of Urology and Pathology

Labs & Collaborations: Collaborates with clinical and basic science teams across UHCMC and CWRU, contributing to advancements in diagnostic and molecular pathology.