Discover and read the best of Twitter Threads about #Derm101

Most recents (6)

You've seen rashes and called them all "maculopapular," because, why not?

Does describing something accurately really make a difference?

9 words to improve your life... when calling a derm consult.
Macules are flat lesions, less than 1 cm in diameter.

If you closed your eyes and ran your finger over it, you wouldn't feel where it starts and stops.

👀Idiopathic guttate hypomelanosis Shins with hypopigmented maculesHypopigmented macules on the arm
Papules are raised (or depressed) lesions, less than 1 cm in diameter.

Unlike macules, if you closed your eyes and ran your finger over it, you'd be able to tell where the lesion is.

👀Compound nevi 2 discrete hyperpigmented papules on the left cheek
Read 11 tweets
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While we're all doom-scrolling through Twitter, I thought I could help provide some distraction for #medtwitter, #dermtwitter & #medstudenttwitter.

A #Derm101 #tweetorial on the #dermatology exam:

REACTION PATTERNS!

AKA: "How a dermatologist approaches a rash!"
pc:@AADskin
2/
So what exactly is a reaction pattern? It's an organizational way to think about rashes so that we can bucket them. There are FIVE main reaction patterns:

1) Papapulosquamous
2) Eczematous
3) Dermal
4) Vascular
5) Vesicobullous

Which reaction pattern was that last photo?👆
3/
It's PAPULOSQUAMOUS! The name means it's papular (raised) with scale. The prototypical rash for these is psoriasis, which is that 1st photo! Notice how in darker skin, the erythema of psoriasis is harder to see!

Here's a whole #tweetorial I made:
Read 16 tweets
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Time for another #morphology #Derm101 series #tweetorial on the skin exam. Today, we'll cover:

DISTRIBUTION

How the location a rash occupies on the body might help us with the differential diagnosis!

#FOAMEd #MedEd #medtwitter #dermtwitter #medstudenttwitter #dermatology
2/
An important point to start:
Distribution is LEAST important in the skin exam. Primary & secondary lesions, configuration & scale are all better in informing our DDx.

I tell my learners that if confused about a rash, pretend it's elsewhere on the body & see if that helps.
3/
Also - throughout this #tweetorial, I will try to display skin disease in lighter & darker skinned patients side by side. Remember in darker skin, erythema is harder to see, so I hope this highlights the point!

A question: In tweet 1, what distribution is shown in the photo:
Read 18 tweets
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OK team, #tweetorial #3 in our #Derm101 series on the #dermatology exam. Today, let's discuss:

CONFIGURATION!

How primary lesions are grouped or shaped. Read on to learn more!

#dermtwitter #medtwitter #medstudentwitter #meded #FOAMEd pc:@dermnetnz @BrwnSkinMatters
2/
Since this is the 3rd installment in the #Derm101 series, remember that if you haven't already, you might want to check out the first two #tweetorials on skin morphology.

Primary Lesion:

Secondary Lesion:
3/
I think of configuration as how the primary lesion might be shaped or grouped. So this would include rashes that are:

Annular
Polycyclic
Serpiginous
Linear
Geometric
Agminate
Herpetiform
Sporotrichoid
Target/Targetoid (kind of)

What configuration was the rash in tweet #1?
Read 20 tweets
1/
As promised, here's the second installment of my #Derm101 series on the #dermatology physical exam and #morphology. A #tweetorial on:

THE SECONDARY LESION!

#MedEd #FOAMEd #dermtwitter #medtwitter #medstudenttwitter pc:@dermnetnz
2/
First off, if you haven't gone through the primary lesion #tweetorial yet, it's a good idea to start there. Here's the link:

As review, these are the different primary lesions👇
3/
Secondary lesions are the changes that affect the primary lesion.

Say what? If a papule is scaly, the SCALE is the secondary lesion. If a plaque is crusty, the CRUST is the secondary lesion.

A question: What was the secondary lesion seen in the pic from the 1st tweet?
Read 16 tweets
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Let's get back to the basics. A #dermtwitter #tweetorial on:

THE PRIMARY LESION!

My plan is to make a #Derm101 series on #morphology and the #skin exam, so this will be the first in that series of #medthreads.

#MedEd #FOAMEd #medtwitter #medstudenttwitter pc:@dermnetnz Image
2/
Why are #dermatologists so obsessed with description?

Well, for us, morphology is everything. We start with the exam and take the history afterward based on the possible differential we've come up with!

So let's start simple. What was that lesion in the prior tweet?
3/
That was a PATCH of vitiligo.

PATCHES are flat lesions >1 cm wide, whereas MACULES are flat lesions <1 cm wide! Check out photo #1 of perioral vitiligo where macules are coalescing into patches!

In #2, you can see both macules and patches in these Cafe au lait lesions. ImageImage
Read 12 tweets

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