He underwent excision of a sebaceous cyst.他做了皮脂囊肿切除手术。

if excision of the lump is not effective如果切除肿块无效的话

Surgeons thought it right to treat breast cancer by an excision of all the breast and muscular tissue of the chest wall.外科医生认为治愈乳腺癌的正确方法是切除整个乳房及胸壁的肌肉组织。

The authors demanded excision of foreign words.作者们要求把外语单词删去。