Squamous cell carcinoma of the conjunctiva.

Squamous cell carcinoma of the conjunctiva is the most frequent nonpigmented malignant conjunctival tumor and often misdiagnosed. Chronic unilateral keratoconjunctivitis should be biopsied to rule out malignancy. The authors report 11 cases treated by complete excision with biopsy. 7 cases were followed up 3 months to 7 years without relapse. Beta-irradiation is recommended for cases suspected of incomplete excision. The incidence, pathological classification, diagnosis, differential diagnosis, treatment and lymphatic metastasis of the disease have been discussed and the significance of periodical follow-up emphasized.