00:01
Here we have choriocarcinoma.
00:04
Choriocarcinoma.
00:05
That prefix sounds an
awful lot like placenta.
00:09
However, why are you here?
Ovaries
or maybe perhaps in a male,
the testicles.
00:17
How is it that you
get placenta here?
Well, understand, this is a
tumor of placenta-like tissue.
00:24
So what we will do is
divide our gestational
and non-gestational type
of choriocarcinoma.
00:29
This obviously will be
non-gestational type.
00:32
But yet,
here’s an ovarian tumor or
perhaps a testicular tumor
that behaves like your
cyst or your trophoblast,
"In what respect, Dr. Raj?"
Watch, watch, watch, watch.
00:41
In pregnancy,
what’s the name of that hormone
that you’re going to test for?
Beta hCG.
00:47
So therefore, in
choriocarcinoma,
you’re going to be
looking for beta hCG.
00:52
And yolk sac tumor, what are
you looking for, that marker?
Alpha fetoprotein, right?
Now, with choriocarcinoma,
you usually find this in combination
with other germ cell tumors.
01:03
Maybe something like
endodermal sinus,
yolk sac or maybe
perhaps a teratoma.
01:08
Important here.
01:09
Usually widely metastatic and
by the time of diagnosis,
that makes this
really dangerous.
01:15
And on histologic
appearance or examination,
you find there to be
placenta-like tissue.