title: Squamous cell carcinoma on the dorsum of the tongue arising in a long-standing lesion of erosive lichen planus.
abstract: Considerable controversy exists regarding the malignant potential of lichen planus. Although a number of cases of malignant transformation have been reported, many have lacked adequate documentation. A histologically well-documented case of squamous cell carcinoma on the dorsum of the tongue arising in a long-standing lesion of erosive lichen planus is presented.
mesh_terms: D002294:Carcinoma, Squamous Cell / Q000209:etiology* / Q000473:pathology; D005260:Female; D006801:Humans; D008010:Lichen Planus / Q000150:complications* / Q000473:pathology; D008875:Middle Aged; D009059:Mouth Diseases / Q000150:complications* / Q000473:pathology; D011230:Precancerous Conditions / Q000473:pathology; D014062:Tongue Neoplasms / Q000209:etiology* / Q000473:pathology