《病例报告》黄×,男,16岁,学生。1975年5月8日初诊。病史:自幼发现左眼角膜上方生一肿块,原较小,近年逐渐长大,影响视力,但无红肿疼痛。曾三次手术,73年9月第一次在某医院手术,术前视力0.2,切下肿块坚韧,易剥离,深达角膜实质层,切除基本完整,无出血,术后不久复发;74年秋在某地行第二次手术,术后复发更速,向下增大,并有轻度异物感;75年3月在上海某医院第三次手术,术前视力0.05,将角膜肿块及角膜板层部份切除,病理检查:肿块表面复盖鳞状上皮,其下纤维组 Case Report Yellow ×, male, 16 years old, student. May 8, 1975 newly diagnosed. History: At an early age he found a cornea above the left cornea, the original smaller, gradually grew up in recent years, affecting vision, but no swelling and pain. Had three operations, 73 years in September for the first time in a hospital surgery, preoperative visual acuity 0.2, cut the tumor tough, easy to peel deep corneal parenchyma, resection of the basic integrity, no bleeding, recurrence shortly after surgery; autumn 74 A trip to the second operation, postoperative recurrence more rapidly, increasing down, and a slight foreign body sensation; March 75 in a hospital in Shanghai the third surgery, preoperative visual acuity 0.05, the corneal mass and corneal plate Layer partial resection, pathological examination: the surface of the lump covered squamous epithelium, the next fiber group