title: [Malignant degeneration of a residual radicular cyst].
abstract: The degeneration risk is extremely low for odontogenic cysts. The present communication deals with a squamous cell carcinoma of the left maxilla. Clinically, it showed all the symptoms of an infected cyst; but histologically, it presented carcinomatous degeneration on certain parts of the cystic epithelium. It was a true cystocarcinoma.
mesh_terms: D000368:Aged; D002294:Carcinoma, Squamous Cell / Q000209:etiology*; D002471:Cell Transformation, Neoplastic; D006801:Humans; D008297:Male; D008441:Maxillary Neoplasms / Q000175:diagnosis* / Q000601:surgery; D009066:Mouth, Edentulous; D009807:Odontogenic Cysts / Q000150:complications* / Q000601:surgery
vernacular_title: Maligne Entartung einer radikulären Residualzyste.