Yolk Sac Tumor (Endodermal Sinus Tumor)

00:01 We’ll go into another type of germ cell tumor.

00:04 You should know both names, endodermal sinus tumor, a.k.a. yolk sac, and stop there.

00:10 Allow the name to speak to you.

00:11 Yolk sac.

00:12 A little baby.

00:13 Okay? And what I mean by that is the fact the most common -- most common ovarian tumor in a girl less than five years of age, Yolk sac tumor, a.k.a. endodermal sinus.

00:26 Rare second most tumor of germ cell origin, resembles yolk sac.

00:32 Here, you’ll find increase levels of alpha fetoprotein and the glomerulus-like structure composed of central blood.

00:39 It’s exactly what you would be seeing in histologic picture.

00:43 This is then referred to as Schiller–Duval body.

00:48 You have a Schiller–Duval body which resembles a glomeruli.

00:52 This is used to represent your yolk sac or endodermal sinus.

00:55 Your patient here are boys and girls.