The differential for OSSN includes pterygium, pingueculum, papilloma, solar keratosis, lipoma, lymphoma, chronic blepharoconjunctivitis, inflammation, melanoma, ocular pannus, pyogenic granuloma, kaposi sarcoma, keratocanthoma, mucoepidermoid<unk> , pseudoepitheliomatous hyperplasia, and adenocarcinoma. While confocal microscopy can be used for diagnosis, biopsy is considered the standard, especially before treatment with a cytotoxic medication.
Conjunctival squamous cell carcinoma
Pseudolymphoma
Rhinoscleroma
Odontogenic keratocyst
Fundic gland polyp
Aquarium granuloma
Idiopathic facial aseptic granuloma
Chorangioma