Dear Dr. Roach: I have been having colonoscopies regularly since 1990. I was due for one last year, but postponed due to COVID-19. My previous doctor had retired, and I found another physician who I ...

A 66-year-old man presented with generalised jaundice, significant weight loss, and epigastric pain. Diagnostic imaging, including ultrasound, CT, and MRI, revealed a periampullary duodenal ...