Thyroid associated orbitopathy

Case contributed by Dr Huda B. Gharbia

Presentation

Bilateral proptosis and diplopia.

Patient Data

Age: 45 years
Gender: Male
MRI

There are bilateral symmetrical swelling and enlargement of extraocular muscle bellies, (both inferior and medial rectus muscles and to lesser degree superior rectus complex), sparing tendons.

They appear isointense in t1_vibe and hyperintense on T2W images and shows homogenous enhancement in t1_vibe post-contrast.

They cause regional mass effect, splaying optic nerve on the left side.

Case Discussion

Bilateral symmetrical enlargement of extraocular muscle bellies, sparing tendons, giving the appearance of coca-cola bottle sign, suggestive thyroid-associated orbitopathy.

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Case information

rID: 69655
Published: 17th Jul 2019
Last edited: 14th Aug 2019
System: Head & Neck
Inclusion in quiz mode: Included

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