A 60-year-old Black man with hypertension and type 2 diabetes presents with a 1-month history of a yellowish, green furry plaque on his tongue.

Diagnosis of tongue cancer typically involves a physical examination of the mouth and throat, along with imaging tests such as CT scans or MRI scans. A biopsy, where a small sample of tissue is ...

A tongue biopsy for suspected squamous cell carcinoma revealed only an ulcer with inflammatory epithelial changes, rather than a malignant tumor. A second tongue biopsy with Congo red staining of ...