EET PG Medical – 2020 – Question – 138
The patient came with unilateral Proptosis and bilateral Abducent nerve palsy. This could be from
a) Cavernous sinus
b) Orbital cellulitis
c) Orbital pseudotumor
d) Orbital lymphoma
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Correct Answer – A
Ans: a.Cavernous sinus
>Proptosis is initially seen unilaterally ultimately becomes bilateral.
>6th cranial nerve(Abducent) passes through the cavernous sinus.so in cavernous sinus thrombosis bilateral abducens palsy is seen.
Parson’s Diseases of the Eye -Ed. 22 Pg 497
