0:00

This is a case which is next in our series of not

0:04

atherosclerotic disease, and it's a case of vasculitis.

0:07

It's a 59-year-old female who came with calf pain with

0:11

exertion.

0:13

And on looking at the study, the

0:15

aortoiliac system was patent without any

0:19

significant stenosis. Looking at the femoral arteries

0:23

on both sides, however, they look severely narrowed in

0:27

caliber. And if we look at it even closer, it looks

0:30

like there is circumferential wall thickening along that superficial

0:34

femoral artery, and this appears to be there on both sides.

0:38

There's also no significant atherosclerosis disease in the

0:42

rest of their vascular beds.

0:44

So having circumferential wall thickening resulting in

0:48

severe stenosis of arteries, specifically the

0:52

superficial femoral arteries bilaterally over here,

0:56

and lack of atherosclerosis on both sides, and then

0:59

patent popliteal arteries more distally, as well

1:03

as patent runoff with three-vessel runoff

1:06

bilaterally,

1:08

was highly concerning for a

1:12

non-atherosclerotic etiology in this individual, and we raised suspicion for

1:16

vasculitis.

1:18

There are slides accompanying this scan with

1:23

a follow-up PET that shows FDG uptake corresponding

1:27

to

1:28

the areas where there was severe stenosis and wall thickening along

1:32

the superficial femoral arteries.

1:34

And there was FDG uptake along all of those sites.

1:37

The patient underwent temporal artery biopsy,

1:42

and they were found to have giant cell

1:44

arteritis.