Timothy Loy

Dr. Tim Loy is a U.S. citizen born and raised in Illinois. He graduated with a degree in biology from Greenville College, Greenville , Illinois in 1979. He received his MD from Southern Illinois University in 1983. A residency in Anatomic pathology was completed at the University of Missouri in 1986. He subsequently did a one year fellowship in Surgical Pathology at the University of Minnesota. Dr Loy returned to join the Pathology faculty at the University of Missouri in 1987. He practiced there for 24 years serving as a surgical pathologist, cytopathologist, section chief of immunohistochemistry (1987-2011) section chief of electron microscopy (1987-2011) and Director of Anatomic Pathology (2005-2011). He joined the faculty of Ross University as a professor of Pathology in 2011.


Dr. Loy practice and research interests have largely been focused on surgical pathology and cytopathology. More recently he has been studying the relationship between lifestyle and disease. He has received awards for medical student teaching and pathology resident teaching. He has been consistently selected as one of the Best Doctors in America since 2001.


Dr Loy is married with 4 children. He currently resides in Dominica with his wife and 2 youngest children. He and his family are involved with Ross Christian Fellowship. Hobbies include exercise, snorkeling and hiking.


Current teaching responsibilities: GI Pathology, Renal Pathology, Head & Neck Pathology


Selected Publications:
Loy TS, Kaplan PA. Villous adenocarcinoma of the colon and rectum: a clinicopathologic study of 36 cases. Am J Surg Path 28: 1460-1465, 2004


Loy TS, Calaluce RD. Utility of cytokeratin immunostaining in separating pulmonary adenocarcinomas from colonic adenocarcinomas. Am J Clin Pathol 102: 764-767, 1994


Loy TS, Darkow GVD, Quesenberry JT: Immunostaining in the diagnosis of pulmonary neuroendocrine carcinomas: an immunohistochemical study with ultrastructural correlations. Am J Surg Path 19: 173-182, 1995


Loy TS Phillips RW Linder CL. A103 immunostaining in the diagnosis of adrenal cortical tumors: an immunohistochemical study of 316 cases. Arch Pathol Lab Med 126: 170-172, 2002


Loy TS. Distribution of 66.4.C2 immunoreactivity in adenocarcinomas and transitional cell carcinomas: an immunohistochemical study of 506 cases. Appl Immunohistochem 6:97-100, 1998