Lynn D. Cornell, M.D., is a medical renal pathologist with special interests in IgG4-related disease and renal transplant pathology. She established the Renal Pathology Fellowship at Mayo Clinic, of which she is program director, where she mentors fellows and other trainees in renal pathology research. She also created and maintains a database of renal biopsy cases at Mayo Clinic, which has furthered clinical research efforts of all of Mayo's renal pathology and nephrology staff and trainees.