Transformation of an unspecific chronic ulcer of the tongue into squamous cell carcinoma.
D000328:Adult; D002294:Carcinoma, Squamous Cell / Q000473:pathology*; D002471:Cell Transformation, Neoplastic / Q000473:pathology; D005260:Female; D006801:Humans; D011230:Precancerous Conditions / Q000473:pathology*; D014062:Tongue Neoplasms / Q000473:pathology*; D014456:Ulcer / Q000473:pathology