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It's only just showing my screen and my slides. Um OK. Hi, everybody. My name's Aqui um As sorry, I'm a final medical student at Kings. Um And I have an interest in dermatology and medical education, finished my finals and I passed that a like a few weeks ago now. Um So unofficially officially doctor, sorry. Um And yeah, that's an introduction to me. I've done this before. Um this introduction to Dermatology lecture series. Um However, I, I presented it to a slightly younger. So um a crowd of um year 12 to 13 students. Um So I've made it a little bit more complex and I've added a few more questions and for diagnosis. So it's should be um kind of aimed at uh younger medical students or premed students um with an interest in dermatology. Nice. Uh Any questions before we begin, sometimes I'll be monitoring the chat on my phone. So if you see me on my phone, it's because um I'm monitoring the chat on here while I present. Um Let's begin. Um So what I'm doing is just setting up the learning objectives. So, um the first learning objective is to understand the anatomical layers and primary functions of the skin. It's really important to get the basics of what the skin is because dermatology is the the study of disease of the skin. Next, it'll be to understand how to perform a comprehensive dermatological history and physical exam. This is slightly different to your normal history taking. Next. Um We're going to accurately identify and describe various skin sorry, various types of skin lesions using appropriate terminology. Um And lastly, we're going to identify and spot diagnose some common dermatological conditions. Um And just a bit of a warning is that there might be some uh graphic medical depiction of skin conditions, but they shouldn't stray, you know, too far away from what's kind of normal pathology. Um OK. So, um we're starting off with the introduction to dermatology. Uh So, first of all, what is dermatology? So, dermatology is a study study of both normal and abnormal skin and associated structures such as the hair, nails, oral and genital mucous membranes. Uh Why is dermatology important? Uh These are very, very common affecting up to a third of the population at any one time in the UK. Um And it's also something that commonly appears um in GP realms. Um And even um if you're interested in other strategies such as gastroenterology, some common conditions like Crohn's or ulcerative colitis represent um uh in the skin and manifest for skin conditions. Um So it's really important to be aware of certain areas of dermatology, skin diseases have serious impact on life. Uh They can cause physical damage, embarrassment and social and occupation, occupational restrictions, uh such as if people have, you know, uh allergic uh contact dermatitis and they work with specific materials that can radiate, affect their occupational, even social life. Um Some chronic skin conditions may also cause uh financial constraints because they may cause repeated sick leave. Um and some conditions um such as these uh dermato dermatological emergencies, such as your erythroderma, which is basically when your entire skin goes red um can be quite life threatening. Uh In 2006 to 2007, the total NHS health expenditure for skin diseases was estimated to be around 97 million uh which is around 2% of the total NHS health expenditure. So quite a lot of money um is spent on dermatology and it's quite important. Ok. So uh starter activity um I know hopefully this works. We've had a bit of difficulty. Uh But if you can scan this and I'll give everybody um a minute. So the starter activity is to see how um would you describe the main dermato dermatological lesion below? So, this lesion here, how would you describe it? Um I'll give everybody around a minute or two and then we'll come back um at eight past six. and I'll read out the answers uh to see. Ok, so I have some answers already. Uh really good. Just one more minute and then I'll read them out and we can um kind of discuss them. Thanks everybody. Um who's responded so far? Nice. Four responses. Five, pretty good. Amazing. Thanks, everybody who responded so far. Um We've got some really good um things let me see if I can move this to the side. Brilliant. So um what we have is for the SAR activity, a few different um descriptions so large lesion red in color with silver plaque. Really good. That's a really good description. A red erythematous large plaque very similar to the other ones are really good red patchy, possibly inflamed. I like that. Somebody's mentioned inflammation. That's really good. You're thinking about the underlying process behind um the plaque. That's very good, large, sorry, scaly, irregular shape, raised, large, really good. So somebody's uh mentioned scaly er for the first time and somebody's mentioned that it's quite irregular, which is really good and that it's raised um erythematous plaque lesion dry, well circumscribed edges in places red and raw. I really like that. I like, I like how somebody um described it as well circumscribed. Um So it's well circumscribed but it's quite irregular in the actual shape as it's not got like a uniform pattern. If you kind of draw, it's kind of asymmetrical. That's what I would probably say if you draw a line through the middle, er both sides aren't exactly the same uh really good responses. Everybody really nice. Um Going to move on um to the main slides again. Yeah, this is, thank you. So I'm gonna refresh this. I think it's, it's gone a bit funny. So, really good responses from everybody. And does anybody have any questions before we move on? Moving on to our, now we're going to go through the structure and the function of the skin. So, um broadly speaking, I got this from the images from the Cleveland Clinic. Um but the functions were from the B AD which stands for the British Association of Dermatologists page. They like to um basically break this down into er six main functions of the normal er skin. So they say number one, it pro provides a protective barrier against environmental insults. Number two, it's really good and useful for temperature regulation. Number three for sensation, number four for Vitamin D synthesis. Number five for immunosurveillance and number six is for appearance or kinesis. So this is the six main drug skin um and the skin is broken down into three main layers and the top layer is then further broken down into five different um components. So the three main layers which you might have heard about before is the epidermis is at the top, followed by the dermis which is at the bottom, um the middle, sorry and then the hypodermis which is at the bottom. Uh ay kind of kind of meaning the top and hypo