fibroid       
noun [ C ]  medical specialized uk/ˈfaɪ.brɔɪd/ us/ˈfaɪ.brɔɪd/
 纤维瘤
a mass of muscle and fibrous (= thread-like) tissue that forms inside someone's body, usually inside the uterus (= the part of the body where a baby grows)
  In most cases, fibroids are harmless and symptom-free. 绝大多数情况下,纤维瘤无害并且无症状。 
 During her pregnancy, an ultrasound scan showed she had fibroids. 怀孕期间的一次超声扫描显示她有纤维瘤。 
 - More examples
 - Irregular bleeding can be caused by uterine fibroids.
 - Various factors appear to influence a woman's risk of developing fibroids.
 - The procedure is used for smaller fibroids and is minimally invasive.
 - Doctors can use hormones to shrink fibroids.
 - I had to have a hysterectomy because of fibroids in my womb.