00:01 We’ll begin our organization. 00:03 Most of your ovarian tumors will be of surface epithelial tumors. 00:09 Ladies and gentlemen, this is where your focus should be. 00:15 We will talk about specific surface epithelial tumors. 00:17 I have divided this into tables coming up next. 00:20 Let’s take a look. 00:24 Overall, the topic is surface epithelial cell tumors. 00:29 Overall, the frequency of all of your ovarian tumors, 65-70%. 00:34 This is where your focus should be. 00:37 The proportion of malignant ovarian tumors, 90% of your malignant ovarian tumors are surface epithelial. 00:47 Age group: Early. 00:49 It could be 20 plus. 00:51 Now, the types. 00:52 Serous, mucinous, endometrioid. 00:56 Let me stop there. 00:57 Why? Because endometrioid sounds an awful lot like endometriosis. 01:03 Sounds a lot like endometritis and it sounds a lot like your endometrioma. 01:08 This is your ovarian tumor. 01:12 It’s called endometrioid tumor. 01:15 Would you tell me what the suffix -oid means? Similar to. 01:19 Leukomoid reaction. 01:22 Endometrioid. 01:23 Epithelioid. 01:25 Right? So here, we have -oid. 01:27 It looks like endometrium, but it is an ovarian tumor. 01:30 Of what family? Surface-derived. 01:34 If you have a surface tumor, how does it like to spread? Surface, likes to seed. 01:42 What does seed mean? It is going to spread to adjacent structures. 01:47 Your focus, by the way, with surface-derived epithelial tumor will be on serous, serous, serous. 01:54 Let’s begin. 01:57 We have 75% of ovarian tumors are surface derived. 02:00 Usually women greater than 20. 02:02 Divided into - we’ll be doing serous, mucinous and endometrioid. 02:07 We’re not going to go through every single one. 02:09 We’ll go through the high yield types of our surface. 02:13 Overall, remember frequency, 65-70%. 02:17 So we will be going through this methodically. 02:20 And I want to make sure that I drill home to you those important salient features. 02:29 The etiology, continuing forward, cystic lesions lined by tall, columnar, cilated epithelial cells filled with serous fluid. 02:38 This is the one that you want to pay attention to and know the histology quite well. 02:43 It’s a cystic lesion, tall, columnar, cilated. 02:47 Usually papillary, so therefore the serous type of epithelial tumor will be papillary. 02:54 Take a look at the P in papillary. 02:57 Take a look at the P in psammoma. 03:00 Psammoma bodies, the description that they’ll give is calcium deposition. 03:06 Okay? You must know what a psammoma body is. 03:09 It’s calcium deposition. 03:11 Also, psammoma bodies is not only found in serous cystadenocarcinoma. 03:18 It can also be found with meningioma. 03:20 It could be found in a couple of places. 03:24 If epithelium is benign, then called papillary serous cystadenoma. 03:30 If it’s malignant, you call it serous cystadenocarcinoma. 03:35 What we’re looking at here is a papillary serous cystadenoma. 03:39 You’ll notice the following that on the image, you’ll find exactly that which is papillary-like with finger-like projections. 03:47 And histologically, you’ll find it to be well-encapsulated because this is a common - Actually, this is the most common, benign, ovarian tumor. 03:56 How do you know it’s benign? Look at the name. 03:58 Cystedenoma. 04:00 And upon histologic examination, it will be well-encapsulated, well-differentiated. 04:05 Serous epithelial tumor, etiology. 04:07 Epithelium is malignant, then we’d call it serous cystadenocarcinoma. 04:12 You must know that usually, it will be bilateral ovaries. 04:16 It is important that you know how many ovaries will be affected. 04:19 Unilateral or bilateral. 04:21 In this case, bilateral. 04:22 Just to make sure that you have the big picture, we’re doing surface-derived epithelial tumors, under that, we’re focusing upon the most common benign surface epithelial tumor, the serous cystadenoma. 04:36 And the next would be the most common malignant surface epithelial tumor, which is a serous cystadenocarcinoma. 04:45 A lot of names sound alike. 04:47 I want to make sure that we’re very clear and deliberate as to what we’re describing. 04:51 Here, you have a papillary serous cystadenocarcinoma, extremely chaotic within the ovary. 04:58 And number two, on histologic examination, you will find extremely poor differentiation. 05:05 Highly malignant. 05:07 Our second type of surface-derived epithelial tumor, let’s call it mucinous epithelial tumor. 05:15 The term mucinous means exactly that. 05:18 Mucin. 05:19 Here, you’d have cystic lesion, but this time instead of it being tall, columnar, ciliated, these will be mucin-producing cells filled with mucus. 05:30 There you have it. 05:31 Everything that you need to know about mucinous, mucus cells filled with mucus. 05:35 But you’re still going to form a cyst. 05:38 Rare before puberty and after menopause, so therefore would be taking place in a female in the reproductive age. 05:46 I’ve mentioned earlier that you want to pay attention to how many of the ovaries have been affected. 05:51 If it is serous, then it will be both, bilateral. 05:57 However, if it’s mucinous, most likely, not bilateral. 06:02 It can present with - now, here’s a term here called pseudomyxoma peritonei. 06:07 In ovarian tumor with mucinous ascites, sometimes referred to as being your malignant ascites. 06:14 The term here is pseudomyxoma peritonei, I would know this in greater detail since we have surface-derived epithelial tumor being high frequency of ovarian tumors. 06:24 A mucinous cystadenoma looks quite different from that of papillary The papillary serous cystadenoma and cystadenocarcinoma would have more of that papillary, well-defined type of structure. 06:35 A mucinous looks more sponge-like. 06:38 It looks like it has cavitations. 06:39 It looks like there’s a lot more cysts. 06:41 And you would find a lot more mucus and mucus cells that are then producing your mucus upon histology. 06:49 Our discussion, two different types of surface-derived epithelial tumors. 06:54 Serous and mucinous.
The lecture Types of Ovarian Tumors: Epithelial Tumors by Carlo Raj, MD is from the course Ovarian Diseases.
Which of the following is NOT a type of epithelial derived ovarian tumor?
Which of the following is a similarity between mucinous and serous epithelial ovarian tumors?
What is pseudomyxoma peritonei?
Which of the following statements about papillary serous cystadenoma is INCORRECT?
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