MRI necessary to diagnose TMJ?: Hello everyone... - PMRGCAuk

PMRGCAuk

21,327 members40,451 posts

MRI necessary to diagnose TMJ?

Mstiles profile image
8 Replies

Hello everyone,

I’ve got PMR/GCA, currently on 17.25 mg pred down from 40 in January.

I Recently developed jaw problems chewing on the right side. My bite is off. GP said it was TMJ not related to the GCA. she ordered a facial CT scan. The radiologist messaged back that wouldn’t show the jaw, so she ordered an MRI as requested.

Long story short, I have tinnitus, much worse since the illness, and the noise was unbearable, couldn’t handle it. I’ve had lots of good suggestions from the forum about how to get through it, but it is just an extra stress.

Can just an X-ray show what’s going on? Do I need really need an MRI?

Written by
Mstiles profile image
Mstiles
To view profiles and participate in discussions please or .
8 Replies
PMRpro profile image
PMRproAmbassador

What's wrong with having an MRI? x-rays show bone stuff - MRIs will show the other stuff.

"Temporomandibular joint (TMJ) dysfunction is a common condition that is best evaluated with magnetic resonance (MR) imaging. The first step in MR imaging of the TMJ is to evaluate the articular disk, or meniscus, in terms of its morphologic features and its location relative to the condyle in both closed- and open-mouth positions. Disk location is of prime importance because the presence of a displaced disk is a critical sign of TMJ dysfunction. However, disk displacement is also frequently seen in asymptomatic volunteers, so that other findings may be required to help make the diagnosis. These findings include thickening of an attachment of the lateral pterygoid muscle, rupture of retrodiskal layers, and joint effusion and can serve as indirect early signs of TMJ dysfunction. It is important for the radiologist to detect early MR imaging signs of dysfunction, thereby avoiding the evolution of this condition to its final stage, an advanced and irreversible phase that is characterized by osteoarthritic changes such as condylar flattening or osteophytes. Further studies conducted with the latest MR imaging techniques will allow a better understanding of the sources of TMJ pain and of any discrepancy between imaging findings and patient symptoms."

Mstiles profile image
Mstiles in reply toPMRpro

Thank you for the detailed info. Explains everything. I don’t have much confidence in my GP, she didn’t know what to order?

PMRpro profile image
PMRproAmbassador in reply toMstiles

TBH I doubt many GPs would know which was best - and it wouldn't occur to most to look it up even if it isn't particularly difficult to find the info. Or you pick up the phone and call the local radiology department. But as that extract says - better sooner than later to avoid the potential long term problems.

Maisie1958 profile image
Maisie1958

Hello Mstiles - hope you get through your MRI this time. I had MRI/MRA of head several weeks ago and was extremely worried about coping- best advice I had was to close my eyes before going in and keeping them closed. Also remembering it was open both ends. My heart was certainly pounding initially but honestly towards the end I was relaxed and risked opening my eyes! The operator also told me what was going on and how long each particular scan/view would take and rattled through very efficiently-I had been informed it would take an hour but was probably out in 35minutes. She wasn’t particularly chatty but just got on with it which suited me. I’m sure she would have given more time between views if I had wanted -so worthwhile having a bit of a discussion before starting? I was being investigated for Pulsatile Tinnitus and although the scan was very noisy it didn’t make the tinnitus worse after, though other people have said it did theirs. Fortunately nothing found but now waiting for appointment for MRA of neck. Apparently my scanner was one of the newer wider ones and bright white inside. I know some places have open ones (you are in the USA aren’t you) -I’m not sure if they give such good detail though.

Anyway just wanted to wish you all the best and hope you get sorted soon,

Irene x

Mstiles profile image
Mstiles in reply toMaisie1958

Thank you for the tips and sharing your experience Maisie. I know the pred has made me a lot more anxious and sensitive to noise. I just wasn’t expecting the noise to be so loud!

This time I will be prepared with some valium and better ear plugs.

Maisie1958 profile image
Maisie1958 in reply toMstiles

Yes better ear plugs would help! I had hoped for earphones playing soothing music not the squishy foam plugs that didn’t seem to do anything.

All good wishes x

nickm001 profile image
nickm001

In simple terms, MRI will show soft tissue structure and bones, while CT is used for bone structures primarily. For TMJ problems MRI is much better. Gradient noise, the tapping that happens during MRI scan can be pretty loud, especially on 3Tesla scanners. They offer ear plugs or similar to lessen the noise, but you will still hear it.

Mstiles profile image
Mstiles

Thank you for the clear explanation. Never had to have one before PMR/GCA.

Not what you're looking for?

You may also like...

MRI today.. just curious

My GP has requested an MRI scan of my head and cervical spine ( had to look it up as wondered why...
Phoenix51 profile image

MRI in PMR diagnosis

I am wondering if anyone has had an MRI that showed evidence of PMR? I have been experiencing...
Anna135 profile image

GCA or TMJ

Started with PMR in September 2022 and now tapered to 4.5 and no symptoms. Using the slow taper,...
Spartans1 profile image

GCA OR TMJ?

Well after going through all the GCA tests, including biopsy which shows a 3 cm piece of the...
Missus835 profile image

TMJ problem, bite is off

Yet another issue from pred? Today, Saturday of course!, my jaw on the right side started...
Mstiles profile image

Moderation team

SophieMB profile image
SophieMBPartner

Content on HealthUnlocked does not replace the relationship between you and doctors or other healthcare professionals nor the advice you receive from them.

Never delay seeking advice or dialling emergency services because of something that you have read on HealthUnlocked.