precancerous dermatitis of vulva

例句：

1. 1. The patient hada history of vulvar premalignant lesion that required treatment.
   这位患者有外阴癌前病变的历史，需要进行治疗。
2. 2. The pathologist found a vulvar premalignant lesion during the examination.
   病理学家在检查中发现了一个外阴癌前病变。
3. 3. The patient was advised to undergo further tests and treatment for the vulvar premalignant lesion.
   建议患者对外阴癌前病变进行进一步的测试和治疗。