Human papillomaviruses are oncogenic viruses that have been found in a variety of epithelial neoplasias. We sought to confirm their presence in conjunctival intraepithelial neoplasia. Five tumors were studied with a polymerase chain-reaction assay designed to detect the E6 region of human papillomavirus types 16 and 18. Human papillomavirus type-16 DNA was found in four of the five tumors, including two tumors that contained both type-16 and type-18 DNA. Viral DNA was not present in the fifth tumor.
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