Discover and read the best of Twitter Threads about #derm

Most recents (14)

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ERYTHEMA MULTIFORME – a #dermatology #tweetorial/#medthread!

#MedEd #FOAMEd #dermatologia #dermtwitter #medtwitter #derm pc: @dermnetnz

Let's warm up with a question for all y'all tweeps out there!

What is the most common trigger for erythema multiforme (EM) in adults?
2/
EM is an immunologic syndrome usually triggered by infection in adults. We usually consider HSV and mycoplasma. A simple history for cold sores or genital ulcers can be telling, but mycoplasma can go undetected symptomatically.

What primary lesions do you expect in EM?
3/
EM is usually made up of papular (raised) targets. Pic1 is of EM; you can see the 3 zones in a typical target (red rim, then white, then red center). Versus SJS/TEN (pic2), where macular targetoid (2 zones of red rim, dusky center & flat).

2nd photo: my.clevelandclinic.org/health/disease…
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VENOUS STASIS LEG ULCERS!!!

A #tweetorial for the #dermtwitter, #medtwitter, #medstudenttwitter, and #hospitalist crowd. 📸:@dermnetnz #medthread

Let's start with a question - What percentage of leg ulcers do you think is caused by venous stasis?
2/
Roughly half (40-50%) of all leg ulcers are the result of venous stasis! Since 1% of the population will get stasis ulcers at some point, it's quite common, both in the inpatient & outpatient settings!

While some say they aren't painful, many of my patients would disagree....
3/
Let's talk exam. These ulcers are predominantly on the lower legs, and often near the medial malleolus. They're usually chronic, so they may have a base covered by yellow fibrinous debris. They tend to be shallow, and given the pathophysiology, quite exudative.
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Syphilis! RMSF! Hand-foot mouth!

Slow down there, Tiger! Let's dive deeper into:

ACRAL RASHES - a #tweetorial/#medthread
(aka rashes on the "palms and soles" - kind of 😉).

#MedEd #FOAMEd #medtwitter #dermtwitter #dermatology #dermatologia pc:@dermnetnz
1/
No where else on the body does a rash evoke more of a knee-jerk differential. That's not wrong per se, as we all learn this in med school, but it's more complicated then starting doxycycline and checking an RPR!

Let's start with a definition - what does "acral" actually mean?
2/
Technically, "acral" just means our distal body parts. So while we often think of palms and soles, it's actually inclusive of the whole hand, the whole foot, ears, and some include even the nose!

I actually didn't learn this until #derm residency, which was shocking to me.
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Hey #medtwitter, can you help me?

I’m leading a session today for the Ohio #derm association/@AADskin career launch Bootcamp on...

THE POWER OF TWITTER!

Could you help RT & like to help me prove the reach of this platform!
Thank you!
#dermtwitter #dermatology #dermatologia
@AADskin Thanks to all! This is what we ended up with the presentation. Appreciate all of #medtwitter's help!
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I'm going to go outside of my regular comfort zone a bit today, and try out a #tweetorial/#medthread a bit more applicable to #medtwitter in general. So here goes....

A beginner's guide to the use of #PREDNISONE!

#MedEd #FOAMEd #dermtwitter #dermatology PC:@dermnetnz
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Ah, prednisone. One of the most frequently used drugs in our specialty, and in many across the board in medicine. Useful for quick suppression of an overactive immune system, whether that be because of autoimmunity, or acute infection. But how does it work?
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The point is that there are so many potential mechanisms, that it's hard to point at one particular enzyme or pathway to explain all its effects. This paper address many of them, but my main takeaway is that we don't know everything! ncbi.nlm.nih.gov/pmc/articles/P…
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PYODERMA GANGRENOSUM – a #tweetorial/#medthread

After my recent #thread on Sweet Syndrome, I thought we’d continue our discussion of neutrophilic dermatoses with a focus on PG this time! Join me below!👇👇👇

#dermtwitter #medtwitter #dermatology #dermatologia pc: @dermnetnz
1/
#Pyodermagagrenosum is a rare ulcerating skin condition that most of us think of in conjunction with IBD. PG can be associated with other things too, so if there’s no IBD, we should also consider other triggers, like the possibility of paraneoplastic processes.
2/
PG is a neutrophilic dermatosis, so like Sweet Syndrome, it starts as a pustule, & ulcerates from there. Remember pathergy is a classic associated finding with neutrophilic derms. See my #tweetorial on sweet syndrome for a discussion of pathergy!


3/
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CUTANEOUS LUPUS – a #tweetorial/#medthread!!

We all learn about Systemic Lupus Erythematosus (SLE) in medical school, but did you know there are multiple forms #lupus can take in the #skin?

#Meded #FOAMed #dermtwitter #medtwitter #rheumtwitter #dermatologia pc: @dermnetnz
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It wasn’t until #dermatology residency I learned about all the subtypes of cutaneous lupus (CLE)! I thought it was all just one disease: SLE. But in reality there are many forms of CLE, each with its own implications on systemic involvement and effect on the patient.
2/
Let’s start with the 3 subtypes:
Acute, Subacute, and Chronic Cutaneous Lupus Erythematosus (ACLE, SCLE, CCLE). CCLE is aka Discoid.
Each subtype "overlaps" with SLE in a different way.

Eg: ACLE overlaps completely with SLE, so they all have SLE! 👇
onlinelibrary.wiley.com/doi/abs/10.111…
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All right #medtwitter, ready to feel itchy? Get your Sarna ready and read on for a #tweetorial/#medthread on....

SCABIES!!!

#dermtwitter #dermatology #MedEd #FOAMEd pc: @dermnetnz #derm #itch #pruritus
1/
What exactly is scabies? Sarcoptes scabiei var. hominis is the technical name of this parasitic mite that burrows into the skin (itchy yet?😆). It is notoriously difficult to diagnose, and has humbled many a #dermatologist.

It has a very characteristic look under the scope!
2/
On exam, most know the classic distribution: interdigital spaces (pic1). However, other places to look include the areola, axilla, and umbilicus. In kids, the lesions tend to be all over the place (perhaps because they aren't as good at scratching them off! - pic2).
3/
Read 17 tweets
Get your #dermatology jokes out now, because this is a #tweetorial/#medthread on....

TOPICAL STEROIDS!

Read on for tips on how to prescribe them, which one to choose, when does it matter, etc.

#MedEd #FOAMed #dermtwitter #medtwitter #dermatologia pc:@dermnetnz
1/
Truly the workhorse of the #dermatologist's medicine chest, topical steroids are great for a multitude of reasons:
- Delivery straight to the organ of interest
- Systemic absorption is usually minimal
- Can be cheap (usually)

What on skin exam best suggests steroids may work?
2/
Erythema is a great indicator that there is inflammation. As such, topical steroids may be a good treatment option. However, there are some reasons NOT to use topical steroids. For example, if the rash is infectious (eg: tinea in photo1, herpes in photo2), steroids = no bueno.
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Thanks, @MelBreggs for the mention, and thank you to @gopiastik for a great #tweetorial on #AGEP (acute generalized exanthematous pustulosis). I would add a couple thoughts here. Please read on!

#MedEd #FOAMEd #derm #dermatology #dermatologia #medthread PC: @dermnetnz
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First of all, the name AGEP can be confusing, but really all it is a description (we dermatologists just like to sound #fancy). If you break it down, Acute (really quick onset) generalized (everywhere), exanthematous (rash-y), pustulosis (pustules)!
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The exam is red plaques studded with pustules (see photo). These pustules can coalesce and become "lakes of pus!" The 2nd picture doesn't have pustules b/c all of them came together, lifted off, and left the "collarette" of scale (which means there's a footprint leftover!
3/
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Just wrapped up 2 weeks on the @MGHMedicine service! Let's celebrate with....

#CELLULITIS - a #tweetorial/#medthread!

#MedEd #FOAMEd #dermtwitter #medtwitter #derm #dermatologia #dermatology PC:@dermnetnz
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What is cellulitis? It's a bacterial infection of the deep dermis & subcutis. Every year, there are ~ 14.5 million cases diagnosed in the US, leading to >600,000 admissions! What does it usually look like? Remember: Tumor, rubor, color, dolor (swelling, red, warm, painful)!
2/
Most likely organisms are staph or strep. Abx choice targets those organisms. For a non-purulent cellulitis in a non-sick pt (1 or fewer SIRS criteria), oral abx are good. IV for non-responders or those with 2 or >SIRS. Check out the algorithm from: jamanetwork.com/journals/jama/…
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#Dermatology #tweetorial time! Let's spend some time on the autoimmune blistering diseases. There are many, so this will be a broad overview of the approach to a the bullous disease patient.
#dermtwitter #FOAMed #medtwitter #medstudenttwitter #MedEd @healourskin pc:@dermnetnz
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The first ? we usually ask: "What is the level of the split?" That helps to distinguish between the #pemphigus group of diseases where the desmosome is involved in the epidermis, and the #pemphigoid group where the hemi-desmosome is involved at the basement membrane zone.
3/
This correlates with the exam! Higher up in the epidermis means a thinner walled blister that's more fragile. So these are usually flaccid bullae. Deeper down means tense bullae. Photo 1 is pemphigus - see how droopy the bulla is? Vs photo 2 of pemphigoid, which stands up.
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OK #hospmed19, I had told myself I wasn't going to make another #tweetorial until next week to give myself a break, but I can't help but be motivated by all the amazing #tweeps at this meeting. Long story short, here's a #medthread on #PSORIASIS!

#MedEd #FOAMed PC:@dermnetnz
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More and more, we are recognizing psoriasis to be a systemic disease. Aside from the psoriatic #arthritis we all know and love, there is more convincing evidence that psoriasis is linked with #cardiovascular disease and risk. As such, #multidisciplinary care is important!

2/
There are many different variants of psoriasis. The most classic is plaque psoriasis, described commonly as "salmon colored plaques with micaceous scale."

Q: Ever notice how psoriasis doesn't really get impetiginized/superinfected but eczema does? Why do you think that is?

3/
Read 17 tweets
I've always thought #dermatology's great because of the ability to understand what might be happening underneath the skin. Let's chat today about all things #paraneoplastic! Time to get our #tweetorial/#medthread on!

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#MedEd #FOAMed #dermtwitter #medtwitter #derm pc:@dermnetnz
Caveats:
- I can't cover ALL the paraneoplastic syndrome of the skin, so apologies if I miss your favorite!
- Management of these syndromes is variable, so I'm presenting what I've learned.
- Lots of one-off case reports. I'll focus on the more common paraneoplastic stuff.

2/
Let's start with one we tend to think of first - #dermatomyositis (DM)! This could be it's own tweetorial, so I'll be brief here. DM is a clinical diagnosis, no biopsies are necessary! If the skin exam is classic, that's all we need.
✅heliotrope
✅shawl sign
✅gottron papule
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Read 13 tweets

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