Types of Ovarian Tumors: Germ Cell Tumors

by Carlo Raj, MD

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    00:01 Here, we have our second family of germ cell tumors.

    00:05 The first family was surface-derived and serous is something that we?ll take a look at in greater detail.

    00:11 Something that I wish to mention here about germ cell tumors.

    00:14 You?ve heard of this quite a bit.

    00:16 And you?ve heard of this and you?ve focused on this a lot more when you did testicular tumors.

    00:23 The family that?s most common of testicular tumors by far is germ cell tumors.

    00:28 And specifically, under germ cell tumors in testicular, you looked at a subtype that also began with the letter S.

    00:38 But that S in germ cell tumor was seminoma in a male.

    00:42 Do you remember? Here, we have germ cell tumor.

    00:46 Let?s take a look.

    00:49 So if your surface-derived epithelial tumors were approximately 65-70% frequency, a far distant second, germ cell tumor ? look at the frequency, 15-20%.

    01:04 Do you need to know it? Sure, for the boards.

    01:06 Well, I?ll walk you through the high yield germ cell tumors.

    01:09 But when it comes to focusing, you focus upon surface-derived first.

    01:13 And you take a look at the serous in greater detail, the mucinous and the endometrioid.

    01:19 A proportion of malignant here drops 3 to 5%.

    01:22 Remember in surface-derived, it was 90%.

    01:25 A whopping 90%.

    01:27 The age group here is well quite young with germ cell tumors.

    01:30 And the types, well ? But first, we?ll take a look at the demographics.

    01:33 20% of all ovarian tumors, not 85%.

    01:37 Women here, well, germ cell tumor, you should be thinking about younger age females.

    01:42 She in fact ? Well, you might have heard things like choriocarcinoma.

    01:48 You might have heard of yolk sac tumors.

    01:52 Okay? Young females.

    01:54 The exception will be cystic teratoma, which occurs during the reproductive age and we will be spending quite a bit of time with cystic teratoma.

    02:04 The homology to germ cell tumors of the male testis -- yes, homology is important.

    02:10 For example, when you talk about germ cell tumor in a female known as a dysgerminoma.

    02:16 Its equivalent in a male is the most common testicular tumor in a male and that being your? Good.

    02:24 Seminoma.

    02:25 So those kinds of things I will point out to you to make sure that we?re doing both men and women pathology in tumors in parallel.

    About the Lecture

    The lecture Types of Ovarian Tumors: Germ Cell Tumors by Carlo Raj, MD is from the course Ovarian Diseases.

    Included Quiz Questions

    1. Cystic teratoma
    2. Dysgerminoma
    3. Seminoma
    4. Endodermal sinus tumor
    5. Choriocarcinoma
    1. Seminoma is the most common form of germ cell tumors in women.
    2. Most types occur in women younger than 20 years old.
    3. They bear homology to germ cell tumors of the male testis.
    4. They represent 20% of all ovarian tumors.
    5. They represent 3–5% of malignant ovarian tumors.

    Author of lecture Types of Ovarian Tumors: Germ Cell Tumors

     Carlo Raj, MD

    Carlo Raj, MD

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