in 17 patients with corneal intraepithelial neoplasia ( dysplasia ) , the epithelium formed a gray plaque at the corneal limbus adjacent to a conjunctival papilloma in seven cases , leukoplakia in six cases , a pterygium in one case , and a pinguecula in one case .
C1333159
corneal intraepithelial neoplasia
C0014609
epithelium