Healing is prolonged, and usually takes 6–10 weeks. The ulcer heals by secondary intention.
Necrotizing sialometaplasia
Ectopic salivary gland tissue
Tuberculous gumma
Proliferating epidermoid cyst
Ceruminous adenoma
Perforating granuloma annulare
Benign lymphoepithelial lesion
Proliferating trichilemmal cyst