A.來源于皮膚或基底細(xì)胞,發(fā)展迅速,轉(zhuǎn)移早 B.伴有色素沉著時(shí),呈黑色,變?yōu)閻盒院谏亓?br /> C.對(duì)放射線敏感,可放療,也可手術(shù)切除 D.經(jīng)常發(fā)生血液和淋巴轉(zhuǎn)移 E.為高度惡性腫瘤