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Wk 9, Case 4 - Review

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0:00

So the next one had a patient with bilateral Cy Adenitis.

0:03

So this was actually best seen on the T one and the T two weighted images,

0:06

if I recall. So this is a nice example here. When you look at the parotid gland,

0:11

you can see there's these multiple lesions involving the parotid gland.

0:14

See these little cysts right here? And when you look even closer,

0:17

you can see there are lots of little tiny cysts here. So this is the patient.

0:23

There we go. See these guys right here?

0:26

So those are multiple cysts involving the parid gland.

0:29

So this was a patient that had sil adenitis.

0:32

So the term that we really use for something like this is really sylectus

0:36

because the, these are actually little dilatations of the parotid asi.

0:41

Those little kind of small little collecting ggl globules are located in the

0:45

parotid gland. So that's actually syl sylectus.

0:49

The reason that it's cause is due to an inflammation, and that's syl adenitis.

0:54

And then the reason these patients get syl adenitis is because they may have an

0:58

autoimmune disease and this autoimmune disease would be Sjogren's disease.

1:02

So just realize that there is a difference in terminology when you talk about

1:07

sylectus sitis, and then the thing that causes it,

1:11

which would be something like Sjogren's disease or, um, other type of,

1:15

uh, uh, auto, uh, autoimmune disease. So, any questions with that one?

1:22

So Sjo three's disease has a big, uh,

1:25

usually they were affecting the tic gram.

1:28

How about the subular or any other survival?

1:32

The decrement gram with everything. Order glands,

1:37

Yes. So that's a very good question. So if you, in this case,

1:40

if you actually look at the submandibular glands,

1:43

look how tiny the submandibular glands are. See how small they are here?

1:47

Yes.

1:48

So yes. So they involve basically any of the salivary glands, and in this case,

1:54

the submandibular glands are shrunken.

1:57

So that's indicative of a chronic sitis.

2:01

And how about the benign lymph?

2:03

Four epithelial lesion related to X?

2:06

Because the imaging features look about similar.

2:10

Um, no, the s well, yeah, it, let me put it this way.

2:15

The, the lymph epithelial cyst that I've seen, I mean,

2:18

I don't see nearly as many as I used to 20 years ago when we were in the AIDS

2:22

epidemic. So when we had aids,

2:24

one of the three findings that you would end up seeing in H I V were, um,

2:29

increased adenoidal tissue involving the, the, the nasal pharynx.

2:33

You would see sort of shoddy lymph nodes that didn't necessarily have to be

2:36

really enlarged, but there were sort of a lot of them.

2:39

And the finding final findings were the lymph epithelial cyst,

2:42

and they tend to be really, really big. So in general,

2:45

the lymph epithelial cyst that I will see now tend to be bigger.

2:50

And I think now they changed the name. You know, we always change names.

2:54

I think now they're called B L E C,

2:56

bilateral lymph BBLs,

2:59

bilateral lymph epithelial lesions, I think what they're called BLEs.

3:04

So it kind of drives me crazy that, you know,

3:06

they kind of change the names on these, but um,

3:09

they tend to be larger as opposed to these smaller ones which are more

3:13

indicative of sort of the, the dilatations of the distal collecting, uh,

3:18

uh, ducts.

3:21

This kind of patient with Sjogren's syndrome,

3:23

there's a tendency to become lymphoma. So how,

3:28

how do we detect it for this kind of patient to look for any enhancement?

3:32

Yeah, enhancing masses. It's pretty rare. Okay. Yes, but you're exactly right.

3:37

You know,

3:37

if you do see something and then you see a dominant enhancing mass within the

3:42

prodi gland, then you have to think of lymphoma. Very good.

Report

Patient History
Multiple parotid cysts identified on prior brain MRI.

Findings
Contrast-enhanced MRI of the neck was performed from the skull base to the thoracic inlet. The study demonstrates multiple intraparotid cysts which involve both the bilateral parotid glands and accessory parotid glands overlying the masseter muscles. These findings are consistent with diffuse sialectasis and could be due to systemic rheumatologic or immunologic abnormality such as Sjogren's disease. Bilateral sialectasis can also be idiopathic or postinfectious. No evidence of aggressive enhancing intraparotid masses are identified. Submandibular glands appear to be within normal limits. Lacrimal glands appear to be slightly atrophic.

Imaging of the neck demonstrates no evidence of enlarged cervical lymph nodes using standard size criteria.

No evidence of aggressive lesions are identified involving the nasopharynx, oropharynx, oral cavity, larynx or hypopharynx.

Reidentified is encephalomalacia involving the mesial left temporal lobe likely due to prior surgery.

C6 through T1 partial congenital vertebral body partial fusion.

Conclusions
1. Bilateral parotid sialectasis likely due to rheumatologic or immunological abnormality and should be correlated with relevant history.
2. No evidence of enlarged lymph nodes using standard size criteria.

Case Discussion

Faculty

David M Yousem, MD, MBA

Professor of Radiology, Vice Chairman and Associate Dean

Johns Hopkins University

Suresh K Mukherji, MD, FACR, MBA

Clinical Professor, University of Illinois & Rutgers University. Faculty, Michigan State University. Director Head & Neck Radiology, ProScan Imaging

Tags

Neuroradiology

MRI

Head and Neck