primitive yolk sac 中文意思是什麼
primitive yolk sac
解釋
原卵黃囊-
An endodermal sinus tumor ( yolk sac tumor ) of the testis is shown composed of primitive germ cells that form glomeruloid or embryonal - like structures
睪丸的內胚層竇腫瘤(卵黃囊腫瘤)由原始生殖細胞構成,這些細胞形成血管球或胚芽樣結構。
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