A 76-year-old man with a history of resected colonic polyps presented for follow-up colonoscopy. He was otherwise asymptomatic and in overall good health. Colonoscopy was unremarkable. The following pictures are haemotoxylin and eosin (H&E)-stained biopsies from the colonic biopsy and immunohistochemistry against Treponema pallidum.
|Kyriakos Chatzopoulos, M.D.
Resident, Anatomic and Clinical Pathology
|Audrey Schuetz, M.D.
Senior Associate Consultant, Laboratory Genetics and Genomics
Associate Professor of Laboratory Medicine and Pathology
Mayo Clinic College of Medicine