premalignant [ˌpri:mə'lɪgnənt]

例句:

• Half those with premalignant adenomas also had it, but it was present in none of those who were disease-free.
  来自BBC
• Oral leukoplakia is an important premalignant lesion of the oral mucosa.
  口腔粘膜白斑病是一种严峻的口腔粘膜癌变前疾病.
  
• Endometrial hyperplasia with atypia is a premalignant condition, preferably treated with hysterectomy.
  内膜增生过长伴有不典型增生属于癌前病变,行子宫切除术更为适合.
  
• However, prostatic hyperplasia is not a premalignant lesion.
  不过, 前列腺增生不是癌前病变.