直接蔓延(dirrect extension)
肿瘤的演进(progression)
交界性肿瘤(borderline tumor)
脊索瘤常见的部位是() ["A.蝶骨嵴","B.髓核","C.棘突","D.斜坡","E.骶骨"]
纤维瘤()脂肪肉瘤()黏液腺癌()交界性肿瘤()卵巢的浆液性囊腺瘤() ["A.来源于上皮组织的恶性肿瘤","B.来源于间叶组织的恶性肿瘤","C.组织形态介于良性与恶性肿瘤之间的肿瘤","D.来源于上皮组织的良性肿瘤","E.来源于间叶组织的良性肿瘤"]
端粒(telomere)