1、Her doctor told her that the lump in her breast was a fibroadenoma, not cancerous.
她的医生告诉她，她乳房上的肿块是乳腺腺瘤，不是恶性的。

2、Fibroadenomas are most commonly found in women in their 20s and 30s.
乳腺腺瘤最常见于20至30岁的女性。