Mycosis Fungoides of the Oral Cavity: Fungating Tumor Successfully Treated with Electron Beam Radiation and Maintenance Bexarotene

Table 1

Differential diagnosis of oral tumors.

Disease	Oral lesion description	Diagnostic clues
Malignancy/premalignancy
Squamous cell papilloma	Discrete exophytic papillary lesions (verruca): occur at any intraoral site	History of human immunodeficiency virus infection; association with cutaneous warts on fingers
Squamous cell carcinoma	Nonhealing ulcers, papules, or plaques: occur most frequently at the floor of the mouth and soft palate	History of tobacco and alcohol consumption; mechanical trauma from ill-fitting dentures
Mesenchymal neoplasms and tumor-like lesions
Fibrous and vascular overgrowths	Discrete lesions of cheek or tongue	History of chronic irritation, usually from some tooth-related cause or chronic cheek/tongue biting
Pyogenic granuloma	Exuberant overgrowths usually at the gingiva but can occur at any intraoral site	May bleed spontaneously or following irritation due to extreme vascularity
Odontogenic tumors and cysts
Ameloblastoma	Oral swellings occurring on the mandible that typically produce multicystic appearance on radiograph	Painless and slow growing; untreated, may reach substantial size
Odontogenic cysts	Oral swellings arising adjacent to teeth that usually produce a well-demarcated cyst on radiograph	Painless and slow growing