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Morton's Neuroma, Bursitis, Miscellaneous

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0:01

I am going to then just make one other comment.

0:04

Um, here. I, I know there's a, um, a couple of things, uh,

0:09

else that are left here.

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Um, before we go into the cases,

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we talked about some of the muscles.

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Um, we talked about the joints.

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One of the thing that you're gonna be asked to look

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for is Morton's neuroma.

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And so Morton's neuroma, um, is basically, um,

0:28

peral scarring and neuroma formation

0:32

of the interdigital nerve.

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So there's a nerve that goes in between the,

0:38

uh, toes, right?

0:39

Uh, and so we talk about the web spaces.

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So you have the first, the second, the third and the fourth.

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And what you're gonna look for is a focal area

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and we'll showcase of, um, kind of T one intermediate

0:53

to low signal rounded, uh, mass like structure going

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between the metatarsal heads.

0:59

And I'm at the level of the MTP joints here.

1:02

So you're gonna wanna scroll back

1:03

and forth through those areas here where my cursor is

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and look for anything that looks like a rounded thing kind

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of hanging down there.

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Um, it's, uh, most commonly in the third, uh, MTP,

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uh, third, um, inter third web space.

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Also the second very common.

1:21

So really focusing on the second and the third.

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Uh, the thing that can kind of, um, trip people up is that

1:28

often with just joint pathology,

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you might have peric capsular scarring along the plantar

1:34

aspects of the M mtp joints.

1:36

Um, that density or that signal

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or mass like area, sorry about that, will be, um, more so

1:45

in the midline, not, not so much, um, in the actual, um,

1:50

inter metatarsal space.

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And so what you want to do is really focus

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between the metatarsal heads there

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and see if you see any, uh,

1:59

any extra tissue in those locations.

2:02

And I will show an example on the T twos.

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You want to, um, also look for inter metatarsal bursitis.

2:08

And so, um, what you're going to look for is, um,

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too much fluid between the meta in a metatarsal spaces in

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that similar area you are.

2:18

Um, you are sort of allowed to have a little bit of fluid,

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um, in those spaces,

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but if you start to see kind of more rounded, um, areas kind

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of going up and down and the patient has a history

2:28

that fits, that's when you can diagnose inter

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metatarsal, uh, bursitis.

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So, um, that is kind of a whirlwind, um, anatomy

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of the forefoot, uh, four foot midfoot

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for your kind of what to look for.

2:44

Talked about the bones, the ligaments, the tendons.

Report

Faculty

Jonathan Samet, MD

Division Head, Body Imaging Section Head, Musculoskeletal Imaging Department of Medical Imaging Ann & Robert H. Lurie Children's Hospital of Chicago Associate Professor of Radiology Northwestern University Feinberg School of Medici

Ann & Robert H. Lurie Children's Hospital of Chicago, Northwestern University Feinberg School of Medicine

Tags

Musculoskeletal (MSK)

MRI

Idiopathic

Foot & Ankle