问题
多项选择题
关于成熟畸胎瘤，叙述正确的有（）
A.发病年龄均小于4岁
B.在儿童睾丸生殖细胞肿瘤中居第2位，占14％～18％
C.多出现转移，预后较好
D.青春期后发病，表现为混合性生殖细胞肿瘤
E.伴血清AFP显著升高
答案
参考答案：A, B
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关于成熟畸胎瘤，叙述正确的有（）
A.发病年龄均小于4岁
B.在儿童睾丸生殖细胞肿瘤中居第2位，占14％～18％
C.多出现转移，预后较好
D.青春期后发病，表现为混合性生殖细胞肿瘤
E.伴血清AFP显著升高
参考答案：A, B
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