(A) Gastroscopy showing multiple geographic erosions with white plaques from the angulus to the antrum. (B) Immunohistochemical staining for Treponema pallidum following gastric biopsy showing an abundance of brown syphilis spirochetes.
Keywords: infectious diseases.
© 2024 The Author(s). Journal of General and Family Medicine published by John Wiley & Sons Australia, Ltd on behalf of Japan Primary Care Association.