Lea Alhilali, MD Profile picture
Jun 14, 2022 10 tweets 6 min read Read on X
1/Like a bad piano player in a run down bar--I take requests! By popular demand, a🧵on how I make those illustrations for my #tweetorials--all in #PowerPoint!
This one shows how to create shadow & highlights to give a 3D effect
#medtwitter #MedEd #FOAMed #powerpointpresentation Image
2/Let's use this french fry illustration I used for my varices🧵
I use the curve function to create shapes. It has the most control for drawing--the freeform function causes uneven lines.
After drawing the shape, I use the shape fill function to fill it in it w/the color I need Image
3/ 3D effects begin w/the gradient fill. I use the gradient fill that powerpoint offers for my selected color--it knows how to chose them so that the gradient is smooth Image
4/ Now to get more advanced w/focal shadows. Using the curve function, I draw shapes where I want shadows. Then I fill these in using the eyedropper function on the Shape Fill menu. I touch the eyedropper to the darkest part of the gradient to fill them in w/a nice dark shadow. Image
5/ Now these shapes need to be blurred so they look more like shadows. I select them and go to the "Shape Effects" menu & select "Soft Edges." I⬆️the size of the soft edge until they look like good shadows. It is different for every shape, but usually you need at least 5 point Image
6/Now for highlights. I use the curve function to draw shapes where I want highlights. Similar to shadows, I use the eyedropper function to fill in the shapes--but instead of putting the eyedropper on the darkest part of the gradient, I put it in the lightest part of the gradient Image
7/However, for highlights, the lightest part of the gradient isn't light enough. So I select the shape, go to shape fill color & select "More colors." This brings up a box where you can lighten the shade of that color--the same way light would lighten it if it was shining on it. Image
8/Now it is time to blur these highlights the same way we blurred the shadows--using the soft edges function, increasing the soft edge until you get desired look of your highlight. Image
9/Now we add details. First, I drew the McDonalds logo using the curve function. Then I used the curve function to draw a single fry. I took that fry & copied & pasted it over &over again--each time rotating it & stretching it to make it look like there were many different fries Image
10/Voila! That is how you make a very professional illustration using only PPT & in only a few easy steps! Excited to see what you will create w/these new skills!
I post more of my tips for creating these illustrations in PPT--so if interested click to follow me @teachplaygrub Image

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More from @teachplaygrub

Apr 23
1/Time to FESS up! Do you understand functional endoscopic sinus surgery (FESS)?

If you read sinus CTs, you better know what the surgeon is doing or you won’t know what you’re doing!

Here’s a thread to make sure you always make the important findings! Image
2/The first step is to insert the endoscope into the nasal cavity.

The first two structures encountered are the nasal septum and the inferior turbinate. Image
3/So on every sinus CT you read, the first question is whether there is enough room to insert the scope.

Will it go in smoothly or will it be a tight fit? Image
Read 19 tweets
Apr 21
1/Ready for a throw down?

MMA fights get a lot of attention, but MMA (middle meningeal art) & dural blood supply doesn’t get the attention it deserves.

A thread on dural vascular anatomy! Image
2/Everyone knows about the blood supply to the brain.

Circle of Willis anatomy is king and loved by everyone, while the vascular anatomy of the blood supply to the dura is the poor, wicked step child of vascular anatomy that is often forgotten Image
3/But dural vascular anatomy & supply are important, especially now that MMA embolizations are commonly for chronic recurrent subdurals.

It also important for understanding dural arteriovenous fistulas as well. Image
Read 17 tweets
Apr 16
1/ Need a global perspective on dementia?

Do you know the global cortical atrophy (GCA) score for evaluating dementia patients—or are you still gestalting volume loss???

Don’t estimate when you can calculate!

Here’s a thread of what you need to know about the GCA score! Image
2/The global cortical atrophy score calculates cortical volume loss on a scale of 0-3 in 13 different regions & ventricular dilatation

Gyri shrink down w/atrophy, the same way your cheeks shrink down with aging! Image
3/Gyri look like lips with around a mouth of sulcal space.

Without volume loss, the gyri look like big fat pursed model lips

But w/volume loss they open up like the scream w/thinning of the lips Image
Read 9 tweets
Apr 14
1/Wish that your knowledge of autoimmune encephalitis was automatic?

Do you feel in limbo about limbic encephalitis?

Do you know the patterns?

Read on for what you need to know in this month's @RadioGraphics review!



@cookyscan1 @RadG_Editor doi.org/10.1148/rg.240…Image
@RadioGraphics @cookyscan1 @RadG_Editor 2/Two pearls:
(1) Most common pattern is limbic encephalitis
(2) Small cell can cause any autoimmune pattern.

You can remember the causes by the demographic:
Young man: testicular
Older: Small cell
Woman with psychiatric symptoms (limbic): breast Image
@RadioGraphics @cookyscan1 @RadG_Editor 3/Limbic encephalitis is the most common pattern

But it has many, many different causes

Remember--limbic involvement is shaped like a question mark!

So for limbic encephalitis, the cause remains a question bc differential is so broad

Must question & clinically correlate! Image
Read 8 tweets
Apr 2
1/One important aspect to stroke care is well, ASPECTS.

It’s a simple score system—but it’s important to understand all aspects!

Read on for the latest research on ASPECTS in this month’s @theAJNR SCANtastic!

ajnr.org/content/46/3/5…Image
2/ASPECTS stands for “Alberta Stroke Program Early CT Score.”

It’s meant to replace gestalt-ing what percent of the MCA territory is infarcted.

Instead, it uses a 10-pt score to semi-quantitate the infarcted tissue in the MCA territory on non-contrast head CT Image
3/You can think of it as a score card for the MCA.

For each region of MCA territory NOT infarcted, the pt gets one point—for a highest score of 10, and lowest score of 0 Image
Read 18 tweets
Mar 21
1/Don't fall for the siren song of calling all bright round objects at foramen of Monro colloid cysts.

Like a true siren song, this may be a TRAP!

If you hear the call of colloid—read this first!

Here's a thread about lesions here that can trap you--& how you can avoid them! Image
2/Here are 3 lesions, all round and bright and in the region of the foramen of Monro.

Can you tell from the images which is a colloid cyst and which may be something else?

Choose which one or ones you think are a colloid cyst! Image
3/In this case it was A!

B was a tortuous basilar

C was a cavernoma of the chiasm/hypothalamus that had bled and projected into the third ventricle. Image
Read 12 tweets

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