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.