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Extraocular muscle involvement in thyroid associated orbitopathy (mnemonic)

Last revised by Mostafa Elfeky on 18 Oct 2019

Citation, DOI, disclosures and article data

Citation:

Dawes L, Elfeky M, Bell D, et al. Extraocular muscle involvement in thyroid associated orbitopathy (mnemonic). Reference article, Radiopaedia.org (Accessed on 20 Apr 2024) https://doi.org/10.53347/rID-1487

DOI:

https://doi.org/10.53347/rID-1487

Permalink:

https://radiopaedia.org/articles/1487

rID:

1487

Article created:

2 May 2008, Laughlin Dawes

Disclosures:

At the time the article was created Laughlin Dawes had no recorded disclosures.

View Laughlin Dawes's current disclosures

Last revised:

18 Oct 2019, Mostafa Elfeky ◉

Disclosures:

At the time the article was last revised Mostafa Elfeky had no recorded disclosures.

View Mostafa Elfeky's current disclosures

Revisions:

13 times, by 10 contributors - see full revision history and disclosures

Systems:

Central Nervous System, Head & Neck

Sections:

Mnemonics

Tags:

reference needed

Synonyms:

I'M SLOW (mnemonic)
SIMSLOW (mnemonic)

A mnemonic to remember the order in which extraocular muscles are involved in thyroid-associated orbitopathy (TAO) is:

I'M SLOw

Mnemonic

I: inferior rectus
M: medial rectus
S: superior rectus
L: lateral rectus
O: obliques muscles (superior oblique and inferior oblique)

There is some debate about this however. Some claim superior rectus is most frequent ², but the mnemonic "SIMLOW" is not as memorable.

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