A 74-year-old man with a 15-year history of diabetes is hospitalized because of end-stage kidney disease. His tongue, inner side of the lips, and buccal mucosa are covered with white, slightly elevated, soft patches (shown in the image). What is the most likely diagnosis?
- Aphthous stomatitis
- Candidiasis
- Herpes labialis
- Pyogenic granuloma
- Xerostomia